Title: Squid Web Proxy Cross-Site Scripting Vulnerability
Severity: HIGH
Description:
Squid is a free client-side web proxy that retrieves cached web pages for quick browsing and a reduction in bandwidth consumption.
Malicious users can negatively affect Squid Web Proxy user by submitting links which contain arbitrary HTML or embedded script commands to websites. The malicious link must generate an error page, but the embedded script command or HTML will be executed within the actual error page.
This issue occurs because Squid Web Proxy does not quote out URLs in error pages, and so any HTML submitted along with the URL will also not be quoted out.
This vulnerability opens up Squid Web Proxy users to a variety of cross-site scripting attacks.
Affected Products:
- National Science Foundation Squid Web Proxy 2.3.0STABLE4
- National Science Foundation Squid Web Proxy 2.4.0DEVEL2
- National Science Foundation Squid Web Proxy 2.4.0DEVEL4
- National Science Foundation Squid Web Proxy 2.4.0PRE-STABLE
- RedHat Linux 6.2.0 alpha
- RedHat Linux 6.2.0 i386
- RedHat Linux 6.2.0 sparc
- RedHat Linux 7.0.0 alpha
- RedHat Linux 7.0.0 i386
- RedHat Linux 7.1.0 alpha
- RedHat Linux 7.1.0 i386
- RedHat Linux 7.1.0 ia64
References:
- National Science Foundation: Squid Cache Home Page
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