CVE Database


Impact: Low
Public: 2013-03-11
Bugzilla: 920643: CVE-2013-2503 privoxy: Proxy-Authentication response spoofing


The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2013-2503 from the MITRE CVE dictionary and NIST NVD.


Vulnerable. This issue affects the version of privoxy as shipped with Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this issue as having low security impact. A future update may address this flaw. For additional information, refer to the Issue Severity Classification:

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score: 4.3
Base Metrics: AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: None
Availability Impact: None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date

External References

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For clarification or corrections please contact the Red Hat Security Response Team.