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Vulnerability details: VCID-8gu1-r7rm-aaaq
Vulnerability ID VCID-8gu1-r7rm-aaaq
Aliases CVE-2016-0755
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-287 Improper Authentication
CWE-305 Authentication Bypass by Primary Weakness
System Score Found at
generic_textual Medium http://curl.haxx.se/docs/adv_20160127A.html
cvssv3.1 9.8 http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
generic_textual CRITICAL http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-0755.html
epss 0.00933 https://api.first.org/data/v1/epss?cve=CVE-2016-0755
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epss 0.09081 https://api.first.org/data/v1/epss?cve=CVE-2016-0755
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1302263
cvssv3.1 Medium https://curl.se/docs/CVE-2016-0755.html
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0755
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2016-0755
cvssv3 7.3 https://nvd.nist.gov/vuln/detail/CVE-2016-0755
cvssv3.1 9.8 https://support.apple.com/HT207170
generic_textual CRITICAL https://support.apple.com/HT207170
generic_textual Medium https://ubuntu.com/security/notices/USN-2882-1
cvssv3.1 5.9 http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
generic_textual MODERATE http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Reference id Reference type URL
http://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://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-0755.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-0755.json
https://api.first.org/data/v1/epss?cve=CVE-2016-0755
https://curl.se/docs/CVE-2016-0755.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0755
https://security.gentoo.org/glsa/201701-47
https://support.apple.com/HT207170
https://ubuntu.com/security/notices/USN-2882-1
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
1302263 https://bugzilla.redhat.com/show_bug.cgi?id=1302263
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
CVE-2016-0755 https://nvd.nist.gov/vuln/detail/CVE-2016-0755
USN-2882-1 https://usn.ubuntu.com/2882-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-0755
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2016-0755
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://support.apple.com/HT207170
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.74059
EPSS Score 0.00933
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.