#VU43011 Input validation error in privoxy - CVE-2013-2503
Published: March 11, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU43011
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2013-2503
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
privoxy
privoxy
Software vendor:
privoxy
privoxy
Description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Privoxy before 3.0.21 does not properly handle Proxy-Authenticate and Proxy-Authorization headers in the client-server data stream, which makes it easier for remote HTTP servers to spoof the intended proxy service via a 407 (aka Proxy Authentication Required) HTTP status code.
Remediation
Install update from vendor's website.