CVE-2004-2480
Description
Squid Web Proxy Cache 2.3.STABLE5 allows remote attackers to bypass security controls and access arbitrary websites via "@@" sequences in a URL within Internet Explorer.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
National Science Foundation Squid Proxy 2.3 - Internet Access Control Bypass
source: https://www.securityfocus.com/bid/10315/info
Squid proxy has been reported to be affected by an Internet access control bypass vulnerability. This issue is caused by a failure of the application to properly handle access controls when evaluating malformed URI requests.
This issue is reported to affect version 2.3.STABLE5 of the software, it is likely however that other versions are also affected.
This issue would allow users that are restricted from accessing Internet-based resources to access arbitrary web sites.
http://@@website_allowed.pt@restricted_internet_resource.htmlOS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.5 |
| sid | Fixed | 2.5 |
| forky | Fixed | 2.5 |
| bullseye | Fixed | 2.5 |
| bookworm | Fixed | 2.5 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.