Vulnerability in D-Link Dap-2020
CVE-2021-27250
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. When parsing the errorpage request parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-11856.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.674 (99.3th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.674 · newest: 0.674 · change: 0.000
Affected products
- D-Link Dap-2020 — versions v1.01rc001
- Dlink Dap-2020
- Dlink Dap-2020 Firmware — versions 1.01
Weakness classification (CWE)
Public proof-of-concept exploits
References
- supportannouncement.us.dlink.com/announcement/publication.aspx (Patch, Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-205/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27250?
- CVE-2021-27250 is a medium-severity vulnerability in D-Link Dap-2020, classified under External Control of File Name or Path. CVSS score: 6.5/10. Published 2021-04-14.
- How severe is CVE-2021-27250?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-27250 known to be exploited?
- 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.