Debian DSA-1738-1 : curl - arbitrary file access

Medium Nessus Plugin ID 35908

Synopsis

The remote Debian host is missing a security-related update.

Description

David Kierznowski discovered that libcurl, a multi-protocol file transfer library, when configured to follow URL redirects automatically, does not question the new target location. As libcurl also supports file:// and scp:// URLs - depending on the setup - an untrusted server could use that to expose local files, overwrite local files or even execute arbitrary code via a malicious URL redirect.

This update introduces a new option called CURLOPT_REDIR_PROTOCOLS which by default does not include the scp and file protocol handlers.

Solution

Upgrade the curl packages.

For the oldstable distribution (etch) this problem has been fixed in version 7.15.5-1etch2.

For the stable distribution (lenny) this problem has been fixed in version 7.18.2-8lenny2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=518423

https://www.debian.org/security/2009/dsa-1738

Plugin Details

Severity: Medium

ID: 35908

File Name: debian_DSA-1738.nasl

Version: 1.12

Type: local

Agent: unix

Published: 2009/03/12

Updated: 2018/11/28

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:curl, cpe:/o:debian:debian_linux:4.0, cpe:/o:debian:debian_linux:5.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/03/11

Reference Information

CVE: CVE-2009-0037

BID: 33962

DSA: 1738

CWE: 352