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[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
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2017-10-17 11:29:42
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[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2017-10-17 11:29:42
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Dear All,
On October 16th, 2017, an security researcher has disclosed some severe flaws in the WPA2 security protocol.
Description of the vulnerability
The vulnerability that known as "KRACK", short for Key Reinstallation Attack, will target the four-way handshake of the WPA2 protocol. Mathy Vanhoef, who published the flaw, said that the flaw may allow an attacker within the Wi-Fi range to decrypt network traffic from a WPA2-enabled device, hijack connections, and inject content into the traffic stream.
The publisher also points out that, the main attack is against the 4-way handshake, and does not exploit access points, but instead targets clients. So it might be that your router does not require security updates.
For more details, please refer to the below article published by Vanhoef:
https://www.krackattacks.com/
The following Common Vulnerabilities and Exposures (CVE) identifiers were assigned to track which products are affected by specific instantiations of the key reinstallation attack:CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082, CVE-2017-13084, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088
TP-Link is aware of the vulnerabilities (KRACKs) in the WPA-2 protocol. We have published a security advisory on the official website and are working to solve the problems now.
Security Advisory: http://www.tp-link.com/en/faq-1970.html
[FONT=&]Software updates for the affected devices will be post at http://www.tp-link.com/support.html over the next few weeks.[/FONT]
Your network security is highly regarded by TP-Link.
Clarification for the WPA2 Vulnerabilities:
1. Please have a look at the article published by Mathy Vanhoef and pay attention to the QA listed at the end:
Q: What if there are no security updates for my router?
A: Our main attack is against the 4-way handshake, and does not exploit access points, but instead targets clients. So it might be that your router does not require security updates. We strongly advise you to contact your vendor for more details. In general though, you can try to mitigate attacks against routers and access points by disabling client functionality (which is for example used in repeater modes) and disabling 802.11r (fast roaming). For ordinary home users, your priority should be updating clients such as laptops and smartphones.
From the QA, we can get clear that the vulnerabilities only targets the devices act as Wi-Fi clients, including laptops, smartphones, range extenders working in RE mode, routers/gateways working in RE/WDS/WISP mode.
Thus if you're using the following TP-Link products:
(Unaffected Devices)
# All powerline adapters
# All mobile Wi-Fi products
# Routers and gateways working on default Router mode or Access Point mode
# Range extenders working in AP mode
You will not be affected by the WPA2 vulnerabilities. What you need to do is updating your Wi-Fi clients.
2. Conditions under which devices are vulnerable:
# Physical proximity: An attack can only happen when an attacker is in physical proximity to and within wireless range of your network.
# Time window: An attack can only happen when a client is connecting or reconnecting to a Wi-Fi network.
Devices affected by the vulnerability
Routers working in Repeater Mode/WISP Mode/Client Mode：
TL-WR940N with firmware version 3.17.1 Build 170717 Rel.55495n or earlier (Hardware Version 3.0 or earlier not affected)
[FONT=verdana]TL-WR841Nv13 with firmware version 0.9.1 4.16 v0348.0 Build 170814 Rel.59214n or earlier (Hardware Version 12.0 or earlier not affected)
TL-WR840N with firmware version 0.9.1 4.16 v019a.0 Build 170524 Rel.56478n or earlier (Hardware Version 2.0 or earlier not affected)
TL-WR941HP with firmware version 3.16.9 Build 20170116 Rel.50912n or earlier
TL-WR841HP with firmware version 3.16.9 Build 160612 Rel.67073n or earlier
TL-WR902AC with firmware version 3.16.9 Build 20160905 Rel.61455n or earlier
TL-WR802N with firmware version 0.9.1 3.16 v0188.0 Build 170705 Rel.34179n or earlier
TL-WR810N with firmware version 3.16.9 Build 160801 Rel.57365n or earlier
Routers with WDS function enabled (disabled by default) may be affected. Refer to the [COLOR=#0000ff]FAQ to learn how to check if WDS is enabled on your router.
Range Extenders working in Repeater Mode during a WPA2 handshake that is initiated only when connecting or reconnecting to a router:
TL-WA850RE with firmware version 1.0.0 Build 20170609 Rel.34153 or earlier
TL-WA855RE with firmware version 1.0.0 Build 20170609 Rel.36187 or earlier
TL-WA860RE with firmware version 1.0.0 Build 20170609 Rel.38491 or earlier
RE200 with firmware version 1.1.3 Build 20170818 Rel.58183 or earlier
RE210 with firmware version 3.14.2 Build 160623 Rel.43391n or earlier
RE305 with firmware version 1.0.0 Build 20170614 Rel.42952 or earlier
RE450 with firmware version 1.0.2 Build 20170626 Rel.60833 or earlier
RE500 with firmware version 1.0.1 Build20170210 Rel.59671 or earlier
RE650 with firmware version 1.0.2 Build 20170524 Rel.58598 or earlier
Wireless Adapters:
Archer T6E
Archer T9E
Whole Home Wi-Fi System:
Deco M5 with firmware version 1.1.5 Build 20170820 Rel.62483 or earlier
CPE/WBS/CAP:
CAP300 with firmware version 1.1.0 Build 20170601 Rel.60253 or earlier
CAP300-Outdoor with firmware version 1.1.0 Build 20170601 Rel.60212 or earlier
CAP1750 with firmware version 1.1.0 Build 20170601 Rel.60196 or earlier
CAP1200 with firmware version 1.0.0 Build 20170801 Rel.61314 or earlier
TL-ER604W with firmware version 1.2.0 Build 20160825 Rel.45880 or earlier
CPE520 with firmware version 2.1.6 Build 20170908 Rel.45234 or earlier
CPE610 with firmware version 2.1.5 Build 20170830 Rel. 58245 or earlier
CPE510 with firmware version 2.1.6 Build 20170908 Rel. 45233 or earlier
CPE220 with firmware version 2.1.6 Build 20170908 Rel. 45233 or earlier
CPE210 with firmware version 2.1.6 Build 20170908 Rel. 45234 or earlier
WBS210 with firmware version 2.1.0 Build 20170609 Rel. 57434 or earlier
WBS510 with firmware version 2.1.6 Build 20170908 Rel. 45234 or earlier
Smart home devices:
Smart Plugs and Switch: HS100，HS105，HS110，HS200
Smart Repeater with Plugs: RE350K，RE270K，RE370K
Cameras: NC250，NC260，NC450, KC120
[/FONT]
How to protect your devices
Until a software update is available to eliminate the vulnerability for your product, it is recommended to take the following precautions:
For wireless routers: Make sure your routers are in Router Mode or AP Mode, and patch the operating system of your smartphones, tablets and computers.
For wireless adapters: Patch the operating system of your computers.
Microsoft security update: Microsoft has fixed such security issues as mentioned in https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-13080
TP-Link has been working on affected models and will release firmware over the next few weeks on our official website.
Reversion History
2017-10-17: Initial release
2017-10-18: Updated some clarifications for the WPA2 vulnerabilities
2017-10-18: Updated the list of affected devices
On October 16th, 2017, an security researcher has disclosed some severe flaws in the WPA2 security protocol.
Description of the vulnerability
The vulnerability that known as "KRACK", short for Key Reinstallation Attack, will target the four-way handshake of the WPA2 protocol. Mathy Vanhoef, who published the flaw, said that the flaw may allow an attacker within the Wi-Fi range to decrypt network traffic from a WPA2-enabled device, hijack connections, and inject content into the traffic stream.
The publisher also points out that, the main attack is against the 4-way handshake, and does not exploit access points, but instead targets clients. So it might be that your router does not require security updates.
For more details, please refer to the below article published by Vanhoef:
https://www.krackattacks.com/
The following Common Vulnerabilities and Exposures (CVE) identifiers were assigned to track which products are affected by specific instantiations of the key reinstallation attack:CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082, CVE-2017-13084, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088
TP-Link is aware of the vulnerabilities (KRACKs) in the WPA-2 protocol. We have published a security advisory on the official website and are working to solve the problems now.
Security Advisory: http://www.tp-link.com/en/faq-1970.html
[FONT=&]Software updates for the affected devices will be post at http://www.tp-link.com/support.html over the next few weeks.[/FONT]
Your network security is highly regarded by TP-Link.
Clarification for the WPA2 Vulnerabilities:
1. Please have a look at the article published by Mathy Vanhoef and pay attention to the QA listed at the end:
Q: What if there are no security updates for my router?
A: Our main attack is against the 4-way handshake, and does not exploit access points, but instead targets clients. So it might be that your router does not require security updates. We strongly advise you to contact your vendor for more details. In general though, you can try to mitigate attacks against routers and access points by disabling client functionality (which is for example used in repeater modes) and disabling 802.11r (fast roaming). For ordinary home users, your priority should be updating clients such as laptops and smartphones.
From the QA, we can get clear that the vulnerabilities only targets the devices act as Wi-Fi clients, including laptops, smartphones, range extenders working in RE mode, routers/gateways working in RE/WDS/WISP mode.
Thus if you're using the following TP-Link products:
(Unaffected Devices)
# All powerline adapters
# All mobile Wi-Fi products
# Routers and gateways working on default Router mode or Access Point mode
# Range extenders working in AP mode
You will not be affected by the WPA2 vulnerabilities. What you need to do is updating your Wi-Fi clients.
2. Conditions under which devices are vulnerable:
# Physical proximity: An attack can only happen when an attacker is in physical proximity to and within wireless range of your network.
# Time window: An attack can only happen when a client is connecting or reconnecting to a Wi-Fi network.
Devices affected by the vulnerability
Routers working in Repeater Mode/WISP Mode/Client Mode：
TL-WR940N with firmware version 3.17.1 Build 170717 Rel.55495n or earlier (Hardware Version 3.0 or earlier not affected)
[FONT=verdana]TL-WR841Nv13 with firmware version 0.9.1 4.16 v0348.0 Build 170814 Rel.59214n or earlier (Hardware Version 12.0 or earlier not affected)
TL-WR840N with firmware version 0.9.1 4.16 v019a.0 Build 170524 Rel.56478n or earlier (Hardware Version 2.0 or earlier not affected)
TL-WR941HP with firmware version 3.16.9 Build 20170116 Rel.50912n or earlier
TL-WR841HP with firmware version 3.16.9 Build 160612 Rel.67073n or earlier
TL-WR902AC with firmware version 3.16.9 Build 20160905 Rel.61455n or earlier
TL-WR802N with firmware version 0.9.1 3.16 v0188.0 Build 170705 Rel.34179n or earlier
TL-WR810N with firmware version 3.16.9 Build 160801 Rel.57365n or earlier
Routers with WDS function enabled (disabled by default) may be affected. Refer to the [COLOR=#0000ff]FAQ to learn how to check if WDS is enabled on your router.
Range Extenders working in Repeater Mode during a WPA2 handshake that is initiated only when connecting or reconnecting to a router:
TL-WA850RE with firmware version 1.0.0 Build 20170609 Rel.34153 or earlier
TL-WA855RE with firmware version 1.0.0 Build 20170609 Rel.36187 or earlier
TL-WA860RE with firmware version 1.0.0 Build 20170609 Rel.38491 or earlier
RE200 with firmware version 1.1.3 Build 20170818 Rel.58183 or earlier
RE210 with firmware version 3.14.2 Build 160623 Rel.43391n or earlier
RE305 with firmware version 1.0.0 Build 20170614 Rel.42952 or earlier
RE450 with firmware version 1.0.2 Build 20170626 Rel.60833 or earlier
RE500 with firmware version 1.0.1 Build20170210 Rel.59671 or earlier
RE650 with firmware version 1.0.2 Build 20170524 Rel.58598 or earlier
Wireless Adapters:
Archer T6E
Archer T9E
Whole Home Wi-Fi System:
Deco M5 with firmware version 1.1.5 Build 20170820 Rel.62483 or earlier
CPE/WBS/CAP:
CAP300 with firmware version 1.1.0 Build 20170601 Rel.60253 or earlier
CAP300-Outdoor with firmware version 1.1.0 Build 20170601 Rel.60212 or earlier
CAP1750 with firmware version 1.1.0 Build 20170601 Rel.60196 or earlier
CAP1200 with firmware version 1.0.0 Build 20170801 Rel.61314 or earlier
TL-ER604W with firmware version 1.2.0 Build 20160825 Rel.45880 or earlier
CPE520 with firmware version 2.1.6 Build 20170908 Rel.45234 or earlier
CPE610 with firmware version 2.1.5 Build 20170830 Rel. 58245 or earlier
CPE510 with firmware version 2.1.6 Build 20170908 Rel. 45233 or earlier
CPE220 with firmware version 2.1.6 Build 20170908 Rel. 45233 or earlier
CPE210 with firmware version 2.1.6 Build 20170908 Rel. 45234 or earlier
WBS210 with firmware version 2.1.0 Build 20170609 Rel. 57434 or earlier
WBS510 with firmware version 2.1.6 Build 20170908 Rel. 45234 or earlier
Smart home devices:
Smart Plugs and Switch: HS100，HS105，HS110，HS200
Smart Repeater with Plugs: RE350K，RE270K，RE370K
Cameras: NC250，NC260，NC450, KC120
[/FONT]
How to protect your devices
Until a software update is available to eliminate the vulnerability for your product, it is recommended to take the following precautions:
For wireless routers: Make sure your routers are in Router Mode or AP Mode, and patch the operating system of your smartphones, tablets and computers.
For wireless adapters: Patch the operating system of your computers.
Microsoft security update: Microsoft has fixed such security issues as mentioned in https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-13080
TP-Link has been working on affected models and will release firmware over the next few weeks on our official website.
Reversion History
2017-10-17: Initial release
2017-10-18: Updated some clarifications for the WPA2 vulnerabilities
2017-10-18: Updated the list of affected devices
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Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2018-02-20 14:28:47
JPT wrote
And the V3 is still a couple years down-level. Likely will never be updated. Time to upgrade to an actual supported router vendor or bite the bullet and load 3rd party firmware to eliminate this poor support.
I don't understand. V2 and V4 were updated. Are they not going to update the V3 starting in the US version?
As far as I know the V3 was created to not allow the usage of 3rd party firmware which is still possible in prior versions.
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Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2018-03-26 07:18:43
Being that the C7 will not be affected if used in the default router mode or set it up as an access point. Should I still disable the router's WSP?
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Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2018-03-27 16:21:27
no need
FrankieB wrote
Being that the C7 will not be affected if used in the default router mode or set it up as an access point. Should I still disable the router's WSP?
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Re:Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2019-07-31 05:58:59
We have released the firmware to fix the WPA2 Security (KRACKs) Vulnerability for Archer C7 V2 EU version already.
Click here to get the firmware.
Nice to Meet You in Our TP-Link Community.
Check Out the Latest Posts:
Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN
Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router
EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller.
Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul
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Re:Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2019-07-31 09:46:37
Thanks for your feedback, seems that the latest firmware is invisible in UK website now. We will remind our engineer to update it.
For your case, you can go to global official website to get the latest firmware which fixed the KRACK issue.
https://www.tp-link.com/en/support/download/archer-c7/v2/#Firmware
Good day.
Nice to Meet You in Our TP-Link Community.
Check Out the Latest Posts:
Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN
Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router
EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller.
Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul
If you found a post or response helpful, please click Helpful (arrow pointing upward icon).
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Re:Re:Re:Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2019-08-01 08:14:44
The EU version uses English, please be assured about it.
And the UK site uses the EU version as well.
Meanwhile, we will update the firmware on the UK site soon.
Nice to Meet You in Our TP-Link Community.
Check Out the Latest Posts:
Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN
Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router
EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller.
Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul
If you found a post or response helpful, please click Helpful (arrow pointing upward icon).
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Re:Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2019-08-05 01:14:19
Nice to Meet You in Our TP-Link Community.
Check Out the Latest Posts:
Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN
Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router
EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller.
Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul
If you found a post or response helpful, please click Helpful (arrow pointing upward icon).
If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2020-03-02 11:56:35
Hello, we are working on it right now. Any updates, we will keep you posted immediately.
You can keep an eye on our official websites as well.
Thanks for your support and patience in advance.
Nice to Meet You in Our TP-Link Community.
Check Out the Latest Posts:
Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN
Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router
EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller.
Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul
If you found a post or response helpful, please click Helpful (arrow pointing upward icon).
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Re:[Security Flaws] Severe flaws called "KRACK" are discovered in the WPA2 protocol
2020-03-04 11:17:49
@zakporter Actually krack and krook are completely different, one (krack) exposes an entire connection between two devices as the vulnerable parts won't encrypt any packet at all. That's indeed a security problem because someone could access the whole data flow, manipulate it, etc.
Krook, on the other side, only exposes a pending buffer when WiFi connection closes. But, except that final pending buffer, all the data flow is encrypted as expected, so it's not so severe and the probability of getting sensitive information from that small buffer is quite low. And even less considering most apps and sites now run over https which is, itself, encrypted (and that is not affected).
So, yes, it's a security issue because there's some data leakage, but it's not the new krack.
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2017-10-17 11:29:42
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