Improper Authentication in curl.haxx.se cURL
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2016-0755 |
| CWE-ID | CWE-287 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
cURL Client/Desktop applications / Other client software |
| Vendor | curl.haxx.se |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Improper Authentication
EUVDB-ID: #VU33077
Risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-0755
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The ConnectionExists function in lib/url.c in libcurl before 7.47.0 does not properly re-use NTLM-authenticated proxy connections, which might allow remote attackers to authenticate as other users via a request, a similar issue to CVE-2014-0015.
MitigationInstall update from vendor's website.
Vulnerable software versionscURL: 7.1 - 7.46.0
External linkshttp://curl.haxx.se/docs/adv_20160127A.html
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176546.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177342.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177383.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176413.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00031.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00044.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00047.html
http://packetstormsecurity.com/files/135695/Slackware-Security-Advisory-curl-Updates.html
http://www.debian.org/security/2016/dsa-3455
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/82307
http://www.securitytracker.com/id/1034882
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.519965
http://www.ubuntu.com/usn/USN-2882-1
http://security.gentoo.org/glsa/201701-47
http://support.apple.com/HT207170
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.
