Squid, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.
CVE-2009-0801 is a security vulnerability that . Impacting 1 product from squid organizations running these solutions should prioritize assessment and patching.
Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
2009-03-04T16:30:00.170
2025-04-09T00:30:58.490
Deferred
CVSSv2: 5.4 (MEDIUM)
AV:N/AC:H/Au:N/C:C/I:N/A:N
4.9
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | squid | squid_web_proxy_cache | 2.7 | Yes |
| Application | squid | squid_web_proxy_cache | 2.7.stable5 | Yes |
| Application | squid | squid_web_proxy_cache | 2.7.stable6 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_pre1 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_pre2 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_pre3 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable1 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable2 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable3 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable4 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable5 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable6 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable7 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable12 | Yes |
| Application | squid | squid_web_proxy_cache | 3.0_stable13 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For squid's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.