PT-2022-5531 · D Link · D-Link Dir-1935

Published 2022-07-22 · Updated 2023-11-08 · CVE-2022-43633

Positive Technologies (AI Summary)

CVSS v2.0

7.7

High

Base vector

AV:A/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions D-Link DIR-1935 version 1.03

Description This issue allows network-adjacent attackers to execute arbitrary code on affected installations. Although authentication is required to exploit this issue, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetSysLogSettings requests to the web management portal. When parsing the IPAddress element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this issue to execute code in the context of root.

Recommendations For D-Link DIR-1935 version 1.03, as a temporary workaround, consider disabling the SetSysLogSettings function until a patch is available. Restrict access to the web management portal to minimize the risk of exploitation. Avoid using the IPAddress element in the affected web management portal until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

BDU:2022-06860

CVE-2022-43633

ZDI-22-1505

Affected Products

D-Link Dir-1935

References · 7

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-22-1505 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-43633 · Security Note
• https://bdu.fstec.ru/vul/2022-06860 · Security Note
• https://osv.dev/vulnerability/CVE-2022-43633 · Vendor Advisory
• https://t.me/cvenotify/47647 · Telegram Post
• https://vuldb.com/ru/?id.212972 · Note