Vulnerability Monitor

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CVE-2020-9276

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. The function do_cgi(), which processes cgi requests supplied to the device's web servers, is vulnerable to a remotely exploitable stack-based buffer overflow. Unauthenticated exploitation is possible by combining this vulnerability with CVE-2020-9277.

Published

2020-04-20T23:15:12.643

Last Modified

2024-11-21T05:40:20.227

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.0

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	dlink	dsl-2640b_firmware	eu_4.01b	Yes
Hardware	dlink	dsl-2640b	-	No

References

https://raelize.com/advisories/CVE-2020-9276_D-Link-DSL-2640B_do_cgi-buffer-overflow_v1.0.txt Third Party Advisory ([email protected])
https://raelize.com/posts/d-link-dsl-2640b-security-advisories/ Exploit, Third Party Advisory ([email protected])
https://www.dlink.com/en/security-bulletin Vendor Advisory ([email protected])
https://raelize.com/advisories/CVE-2020-9276_D-Link-DSL-2640B_do_cgi-buffer-overflow_v1.0.txt Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://raelize.com/posts/d-link-dsl-2640b-security-advisories/ Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.dlink.com/en/security-bulletin Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)