PT-2022-1945 · Tp Link · Tp-Link Tl-Wr840N

Published 2022-02-14 · Updated 2023-08-08 · CVE-2022-25064

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions TP-LINK TL-WR840N(ES) version V6.20 180709

Description The issue is related to a remote code execution vulnerability via the function oal wan6 setIpAddr(). This vulnerability is associated with the lack of neutralization of special elements when processing the X TP ExternalIPv6Address argument in the libcmm.so module of the TP-Link TL-WR840N (ES) router's firmware. Exploitation of this issue may allow an attacker to execute arbitrary code.

Recommendations For TP-LINK TL-WR840N(ES) version V6.20 180709, as a temporary workaround, consider disabling the oal wan6 setIpAddr() function until a patch is available. Restrict access to the libcmm.so module to minimize the risk of exploitation. Avoid using the X TP ExternalIPv6Address argument in the affected function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

BDU:2022-01502

CVE-2022-25064

Affected Products

Tp-Link Tl-Wr840N

References · 9

• 🔥 https://github.com/Mr-xn/CVE-2022-25064 · Exploit
• 🔥 https://east-trowel-102.notion.site/CVE-2021-XXXX-rce-via-crafted-payload-in-an-ipv6-address-input-field-hidden-EN-98e24b6f841043fba17ec4627c34f5d1 · Exploit
• https://osv.dev/vulnerability/CVE-2022-25064 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-25064 · Security Note
• https://bdu.fstec.ru/vul/2022-01502 · Security Note
• http://tp-link.com · Note
• http://router.com · Note
• https://t.me/pentestingnews/19675 · Telegram Post
• https://t.me/cvenotify/27400 · Telegram Post