RCE in D-Link Dir-X3260
CVE-2023-44421
D-Link DIR-X3260 SetTriggerPPPoEValidate Username Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-X3260 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the prog.cgi program, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21101.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.011 (62.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- D-link Dir-x3260 — versions 1.02B02
- Dlink Dir-x3260
- Dlink Dir-x3260_firmware
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-44421?
- CVE-2023-44421 is a high-severity vulnerability in D-Link Dir-X3260, classified under OS Command Injection. CVSS score: 8.0/10. Published 2024-05-03.
- How severe is CVE-2023-44421?
- High severity. CVSS v3 base score is 8.0 out of 10.