Vulnerability identifier: #VU27059
Vulnerability risk: Low
CVSSv3.1: 8.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-287
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
DSL-2640B
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Vendor: D-Link
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when accessing cgi modules. A remote attacker on the local network can bypass authentication process and perform administrative tasks.
This vulnerability affects devices with the following versions:Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
DSL-2640B: 4.01
External links
http://raelize.com/advisories/CVE-2020-9277_D-Link-DSL-2640B_CGI-Authentication-bypass_v1.0.txt
http://raelize.com/posts/d-link-dsl-2640b-security-advisories/
http://www.dlink.com/en/security-bulletin
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.