CVE-2011-3349

lightdm before 0.9.6 writes in .dmrc and Xauthority files using root permissions while the files are in user controlled folders. A local user can overwrite root-owned files via a symlink, which can allow possible privilege escalation.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.securityfocus.com/bid/50506	Third Party Advisory VDB Entry
https://seclists.org/oss-sec/2011/q3/393	Mailing List Third Party Advisory
https://bugs.launchpad.net/debian/+source/lightdm/+bug/834079	Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2011-3349	Third Party Advisory
https://access.redhat.com/security/cve/cve-2011-3349	Broken Link
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639151	Mailing List Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:lightdm_project:lightdm:*:*:*:*:*:*:*:*

Information

Published : 2019-11-19 14:15

Updated : 2019-12-03 08:19

NVD link : CVE-2011-3349

Mitre link : CVE-2011-3349

JSON object : View

CWE

CWE-269

Improper Privilege Management

Advertisement

Products Affected

lightdm_project

lightdm

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.securityfocus.com/bid/50506", "name": "https://www.securityfocus.com/bid/50506", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "MISC"}, {"url": "https://seclists.org/oss-sec/2011/q3/393", "name": "https://seclists.org/oss-sec/2011/q3/393", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://bugs.launchpad.net/debian/+source/lightdm/+bug/834079", "name": "https://bugs.launchpad.net/debian/+source/lightdm/+bug/834079", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://security-tracker.debian.org/tracker/CVE-2011-3349", "name": "https://security-tracker.debian.org/tracker/CVE-2011-3349", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://access.redhat.com/security/cve/cve-2011-3349", "name": "https://access.redhat.com/security/cve/cve-2011-3349", "tags": ["Broken Link"], "refsource": "MISC"}, {"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639151", "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639151", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "lightdm before 0.9.6 writes in .dmrc and Xauthority files using root permissions while the files are in user controlled folders. A local user can overwrite root-owned files via a symlink, which can allow possible privilege escalation."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-269"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2011-3349", "ASSIGNER": "secalert@redhat.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 10.0, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}}, "publishedDate": "2019-11-19T22:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:lightdm_project:lightdm:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "0.9.6"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2019-12-03T16:19Z"}