CVE-2016-1572

mount.ecryptfs_private.c in eCryptfs-utils does not validate mount destination filesystem types, which allows local users to gain privileges by mounting over a nonstandard filesystem, as demonstrated by /proc/$pid.

CVSS v3.0 8.4 HIGH
CVSS v2.0 4.6 MEDIUM

8.4^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2016/01/20/6	Mailing List Third Party Advisory
http://www.ubuntu.com/usn/USN-2876-1	Patch Third Party Advisory
https://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/870	Patch Third Party Advisory
https://bugs.launchpad.net/ecryptfs/+bug/1530566	Issue Tracking Patch Third Party Advisory
http://www.debian.org/security/2016/dsa-3450	Patch Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-01/msg00091.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-01/msg00118.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00004.html	Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177359.html	Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177396.html	Mailing List Third Party Advisory
http://www.securitytracker.com/id/1034791	Broken Link Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:ecryptfs:ecryptfs-utils:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:12.04::::-:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:15.04:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:15.10:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:leap:42.1:::::::*
	cpe:2.3:o:opensuse:opensuse:13.1:::::::*
	cpe:2.3:o:opensuse:opensuse:13.2:::::::*

Configuration 4 (hide)

OR	cpe:2.3:o:debian:debian_linux:7.0:::::::*
	cpe:2.3:o:debian:debian_linux:8.0:::::::*

Configuration 5 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:22:::::::*
	cpe:2.3:o:fedoraproject:fedora:23:::::::*

Information

Published : 2016-01-22 07:59

Updated : 2022-03-23 10:19

NVD link : CVE-2016-1572

Mitre link : CVE-2016-1572

JSON object : View

CWE

CWE-269

Improper Privilege Management

Products Affected

fedoraproject

fedora

canonical

ubuntu_linux

opensuse

leap
opensuse

debian

debian_linux

ecryptfs

ecryptfs-utils

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://www.openwall.com/lists/oss-security/2016/01/20/6", "name": "[oss-security] 20160120 Security issue in eCryptfs-utils (CVE-2016-1572)", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.ubuntu.com/usn/USN-2876-1", "name": "USN-2876-1", "tags": ["Patch", "Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/870", "name": "https://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/870", "tags": ["Patch", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://bugs.launchpad.net/ecryptfs/+bug/1530566", "name": "https://bugs.launchpad.net/ecryptfs/+bug/1530566", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.debian.org/security/2016/dsa-3450", "name": "DSA-3450", "tags": ["Patch", "Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-01/msg00091.html", "name": "openSUSE-SU-2016:0239", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-01/msg00118.html", "name": "openSUSE-SU-2016:0291", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00004.html", "name": "openSUSE-SU-2016:0302", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177359.html", "name": "FEDORA-2016-b02ad4e424", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177396.html", "name": "FEDORA-2016-7b9a2fe987", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "http://www.securitytracker.com/id/1034791", "name": "1034791", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "refsource": "SECTRACK"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "mount.ecryptfs_private.c in eCryptfs-utils does not validate mount destination filesystem types, which allows local users to gain privileges by mounting over a nonstandard filesystem, as demonstrated by /proc/$pid."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-269"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-1572", "ASSIGNER": "security@ubuntu.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.5}}, "publishedDate": "2016-01-22T15:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:ecryptfs:ecryptfs-utils:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "109"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-03-23T17:19Z"}

8.4 /10