Zero-day vulnerability in Webglimpse

Command injection
CVE-2012-1795

The vulnerability was reported by Kevin Perry.

Vulnerability details

Advisory: SB2012032001 - Command injection in WebGlimpse

Vulnerable component: Webglimpse

CVE-ID: CVE-2012-1795

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

CWE-ID: CWE-77 - Command injection

Description:

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The weakness exists due to insufficient sanitization of user-supplied data passed via the "query" HTTP GET parameter to "/webglimpse.cgi" script. A remote attacker can send a specially crafted HTTP request to vulnerable script and execute arbitrary OS commands on vulnerable system.

Exploitation example: 

http://[host]/webglimpse.cgi?query=%27%26command+and+arguments+go+here%26%27

Successful exploitation may allow an attacker to gain complete control over vulnerable system.

Note: this vulnerability is being actively exploited.

External links:

http://www.kb.cert.org/vuls/id/364363

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.