Headline

CVE-2022-0650: ZDI-22-407

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13993.

1 year ago

CVE

Open in Source

#vulnerability #rce #buffer_overflow #auth

February 22nd, 2022

TP-Link TL-WR940N httpd newBridgessid Stack-based Buffer Overflow Remote Code Execution Vulnerability****ZDI-22-407
ZDI-CAN-13993

CVE ID

CVE-2022-0650

CVSS SCORE

6.8, (AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

AFFECTED VENDORS

TP-Link

AFFECTED PRODUCTS

TL-WR940N

VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N routers. Authentication is required to exploit this vulnerability.

The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.

ADDITIONAL DETAILS

Fixed in firmware 211111

DISCLOSURE TIMELINE

2021-10-21 - Vulnerability reported to vendor
2022-02-22 - Coordinated public release of advisory

CREDIT

Vadym Kolisnichenko

BACK TO ADVISORIES

SolarWinds Platform was susceptible to the Deserialization of Untrusted Data. This vulnerability allows a remote adversary with Orion admin-level account access to SolarWinds Web Console to execute arbitrary commands.