Path traversal in lighttpd

1) Path traversal

EUVDB-ID: #VU32560

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2014-2324

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

Multiple directory traversal vulnerabilities in (1) mod_evhost and (2) mod_simple_vhost in lighttpd before 1.4.35 allow remote attackers to read arbitrary files via a .. (dot dot) in the host name, related to request_check_hostname.

Mitigation

Install update from vendor's website.

Vulnerable software versions

lighttpd: 1.4.1 - 1.4.34

CPE2.3

• cpe:2.3:a:lighttpd:lighttpd:1.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:lighttpd:lighttpd:1.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:lighttpd:lighttpd:1.4.3:*:*:*:*:*:*:*

External links

https://download.lighttpd.net/lighttpd/security/lighttpd_sa_2014_01.txt
https://lists.opensuse.org/opensuse-security-announce/2014-03/msg00023.html
https://lists.opensuse.org/opensuse-security-announce/2014-04/msg00002.html
https://lists.opensuse.org/opensuse-security-announce/2014-04/msg00006.html
https://marc.info/?l=bugtraq&m=141576815022399&w=2
https://seclists.org/oss-sec/2014/q1/561
https://seclists.org/oss-sec/2014/q1/564
https://secunia.com/advisories/57404
https://secunia.com/advisories/57514
https://www.debian.org/security/2014/dsa-2877
https://www.lighttpd.net/2014/3/12/1.4.35/
https://www.securityfocus.com/bid/66157

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.