VulnerabilityModified
CVE-2020-9277
Authentication can be bypassed when accessing cgi modules.
CRITICAL 9.8EPSS 2.46%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. Authentication can be bypassed when accessing cgi modules. This allows one to perform administrative tasks (e.g., modify the admin password) with no authentication.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.46% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- dlink/dsl-2640b firmware
- Source
- cve@mitre.org
References
- https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txtThird Party Advisory
- https://raelize.com/posts/d-link-dsl-2640b-security-advisories/Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletinVendor Advisory
- https://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txtThird Party Advisory
- https://raelize.com/posts/d-link-dsl-2640b-security-advisories/Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletinVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.