RCE in D-Link Multiple Routers
CVE-2020-27862
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. When parsing the path parameter, the process does not properly validate 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 the web server. Was ZDI-CAN-10911.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: +0.000
Affected products
- D-Link Multiple Routers — versions firmware version 2.3
- Dlink Dsl-2888a — versions revision_t
- Dlink Dsl-2888a Firmware — versions 2.30_au
- Dlink Dva-2800 — versions revision_t
- Dlink Dva-2800 Firmware — versions 2.30_au
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-20-1426/ (VDB Entry, Third Party Advisory)
- supportannouncement.us.dlink.com/announcement/publication.aspx (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-27862?
- CVE-2020-27862 is a high-severity vulnerability in D-Link Multiple Routers, classified under Command Injection. CVSS score: 8.8/10. Published 2021-02-12.
- How severe is CVE-2020-27862?
- High severity. CVSS v3 base score is 8.8 out of 10.