Signature Detail
Short Name |
HTTP:LHTTPD:HOST-DOT-DOT-SLASH |
|---|---|
Severity |
High |
Recommended |
No |
Recommended Action |
Drop |
Category |
HTTP |
Keywords |
Light HTTPD Host Header Vulnerability |
Release Date |
2003/11/05 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
HTTP: Light HTTPD Host Header Vulnerability
This signature detects attempts to exploit a known vulnerability in Light HTTPD; an HTTP server provided with several distributions of Linux. Attackers can use a malformed Host: header value to remotely view files or execute arbitrary code on the target system.
Extended Description
A vulnerability has been reported in thttpd that may allow a remote attacker to execute arbitrary code on vulnerable host. The issue is reported to exist due to a lack of bounds checking by software, leading to a buffer overflow condition. The problem is reported to exist in the defang() function in libhttpd.c. This issue may allow an attacker to gain unauthorized access to a vulnerable host. Successful exploitation of this issue may allow an attacker to execute arbitrary code in the context of the web server in order to gain unauthorized access to a vulnerable system. thttpd versions 2.21 to 2.23b1 have been reported to be prone to this issue, however other versions may be affected as well.
Affected Products
- Acme Software thttpd 2.20.0 B
- Acme Software thttpd 2.20.0 C
- Acme Software thttpd 2.21.0
- Acme Software thttpd 2.21.0 B
- Acme Software thttpd 2.22.0
- Acme Software thttpd 2.23.0 B1
References
- BugTraq: 8906
- CVE: CVE-2003-0899