Information disclosure in curl.haxx.se cURL

1) Information disclosure

EUVDB-ID: #VU33107

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-1944

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The tailMatch function in cookie.c in cURL and libcurl before 7.30.0 does not properly match the path domain when sending cookies, which allows remote attackers to steal cookies via a matching suffix in the domain of a URL. Per http://www.ubuntu.com/usn/USN-1801-1/ "A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.10 Ubuntu 12.04 LTS Ubuntu 11.10 Ubuntu 10.04 LTS Ubuntu 8.04 LTS"

Mitigation

Install update from vendor's website.

Vulnerable software versions

cURL: 7.1 - 7.29.0

External links

http://curl.haxx.se/docs/adv_20130412.html
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102056.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102711.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104207.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104598.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105539.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106606.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00013.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00016.html
http://rhn.redhat.com/errata/RHSA-2013-0771.html
http://secunia.com/advisories/53044
http://secunia.com/advisories/53051
http://secunia.com/advisories/53097
http://www.debian.org/security/2012/dsa-2660
http://www.mandriva.com/security/advisories?name=MDVSA-2013:151
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.osvdb.org/92316
http://www.securityfocus.com/bid/59058
http://www.ubuntu.com/usn/USN-1801-1
http://bugzilla.redhat.com/show_bug.cgi?id=950577
http://github.com/bagder/curl/commit/2eb8dcf26cb37f09cffe26909a646e702dbcab66
http://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0121

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.