#VU13384 Authorization bypass in Axis Communications video cameras - CVE-2018-10661

Vulnerability identifier: #VU13384

Vulnerability risk: Low

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2018-10661

CWE-ID: CWE-862

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Axis Communications video cameras
Hardware solutions / Firmware

Vendor: Axis Communications

Description

The vulnerability allows a remote attacker to bypass authorization on the target system.

The weakness exists in mod_authz_axisgroupfile.so: a custom authorization module for Apache httpd that was written by the vendor due to insufficient validation of user-supplied input. A remote attacker can send unauthenticated requests to a world-readable file that are followed by a backslash and end with the .srv extension that are treated by the authorization code as standard requests to the index.html and thus granted access and bypass the web-server’s authorization mechanism.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Axis Communications video cameras: All versions

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External links
https://blog.vdoo.com/2018/06/18/vdoo-discovers-significant-vulnerabilities-in-axis-cameras/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.