Vulnerability Details : CVE-2016-0755
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2016-0755
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-0755
1.70%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-0755
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.3
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
3.9
|
3.4
|
NIST |
CWE ids for CVE-2016-0755
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-0755
-
https://security.gentoo.org/glsa/201701-47
cURL: Multiple vulnerabilities (GLSA 201701-47) — Gentoo security
-
http://packetstormsecurity.com/files/135695/Slackware-Security-Advisory-curl-Updates.html
Slackware Security Advisory - curl Updates ≈ Packet Storm
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177342.html
[SECURITY] Fedora 23 Update: mingw-curl-7.47.0-1.fc23
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177383.html
[SECURITY] Fedora 22 Update: mingw-curl-7.47.0-1.fc22
-
http://www.debian.org/security/2016/dsa-3455
Debian -- Security Information -- DSA-3455-1 curl
-
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
CPU Oct 2018
-
http://www.ubuntu.com/usn/USN-2882-1
USN-2882-1: curl vulnerability | Ubuntu security notices
-
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
Apple - Lists.apple.com
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http://lists.opensuse.org/opensuse-updates/2016-02/msg00047.html
openSUSE-SU-2016:0376-1: moderate: Security update for curl
-
http://curl.haxx.se/docs/adv_20160127A.html
curl - NTLM credentials not-checked for proxy connection re-use - CVE-2016-0755Vendor Advisory
-
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176546.html
[SECURITY] Fedora 22 Update: curl-7.40.0-8.fc22
-
http://www.securityfocus.com/bid/82307
cURL/libcURL NTLM Connection CVE-2016-0755 Remote Security Bypass Vulnerability
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http://www.securitytracker.com/id/1034882
libcurl Lets Remote Users Bypass NTLM Proxy Authentication on the Target System - SecurityTracker
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https://support.apple.com/HT207170
About the security content of macOS Sierra 10.12 - Apple Support
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http://lists.opensuse.org/opensuse-updates/2016-02/msg00044.html
openSUSE-SU-2016:0373-1: moderate: Security update for curl
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http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176413.html
[SECURITY] Fedora 23 Update: curl-7.43.0-5.fc23
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http://lists.opensuse.org/opensuse-updates/2016-02/msg00031.html
openSUSE-SU-2016:0360-1: moderate: Security update for curl
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http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.519965
The Slackware Linux Project: Slackware Security Advisories
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