PT-2023-9201 · Tp Link · Tp-Link Omada Er605

Chris Anastasio + 1 · Published 2023-09-11 · Updated 2024-05-24 · CVE-2024-5227

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TP-Link Omada ER605 (affected versions not specified)

Description This issue allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Omada ER605 routers. The flaw exists within the handling of the username parameter provided to the "/usr/bin/pppd" endpoint, due to the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this to execute code in the context of root. Devices are only vulnerable if configured to use a PPTP VPN with LDAP authentication.

Recommendations As a temporary workaround, consider disabling the use of PPTP VPN with LDAP authentication until a patch is available. Restrict access to the /usr/bin/pppd endpoint to minimize the risk of exploitation. Avoid using the username parameter in the affected endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2024-04598

CVE-2024-5227

ZDI-24-499

Affected Products

Tp-Link Omada Er605

References · 6

• https://bdu.fstec.ru/vul/2024-04598 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-5227 · Security Note
• https://osv.dev/vulnerability/CVE-2024-5227 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-24-499 · Security Note
• https://vuldb.com/?id.266051 · Note
• https://tp-link.com/en/support/download/er605/#Firmware · Note