Description
FTP proxy in Squid before 2.4.STABLE6 does not compare the IP addresses of control and data connections with the FTP server, which allows remote attackers to bypass firewall rules or spoof FTP server responses.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | squid | 2.4.6 | — |
| Debian 13 | squid | 2.4.6 | — |
| Debian 12 | squid | 2.4.6 | — |
References
- 20020715 TSLSA-2002-0062 - squid mailing-list
- http://www.squid-cache.org/Versions/v2/2.4/bugs/
- RHSA-2002:051 vendor-advisory
- http://www.squid-cache.org/Advisories/SQUID-2002_3.txt
- RHSA-2002:130 vendor-advisory
- MDKSA-2002:044 vendor-advisory
- 5158 vdb-entry
- CLA-2002:506 vendor-advisory
- squid-ftp-data-injection(9479) vdb-entry
- 5924 vdb-entry