CVE-2006-3918 Cross-site scripting in n/a

What is CVE-2006-3918?

CVE-2006-3918 is a medium-severity cross-site scripting vulnerability in Apache Http Server, published on 28 Jul 2006. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before 2.0.58, and 2.2 before 2.2.2, does not sanitize the Expect header from an HTTP request when it is reflected back in an error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated using a Flash SWF file.

Weakness: CWE-79

Which versions are affected by CVE-2006-3918?

It affects 5 products.

Products include Apache Http Server, Canonical Ubuntu Linux, Debian Debian Linux, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2006-3918?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2006-3918 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-3918 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Apache Http Server

• CVE-2021-42013 Apache HTTP Server Path Traversal Exploited Critical 9.8
• CVE-2024-38475 Apache HTTP Server Improper Escaping of Output Exploited Critical 9.1
• CVE-2021-40438 Apache HTTP Server-Side Request Forgery (SSRF) Exploited Critical 9.0
• CVE-2019-0211 Apache HTTP Server Privilege Escalation Exploited High 7.8
• CVE-2021-41773 Apache HTTP Server Path Traversal Exploited High 7.5

All Apache Http Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2006-3918, GHSA-67m9-fpj8-vgmv, RHSA-2006:0619.