What is the CVSS score of CVE-2017-7358?

CVE-2017-7358 has a CVSS 3.0 base score of 7.3 (High). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.7%.

Is there a public PoC exploit available for CVE-2017-7358?

Yes, a public proof-of-concept exploit is available for CVE-2017-7358. Prioritise patching immediately. EPSS: 1.7%.

Lightdm CVE-2017-7358

HIGH

Path Traversal (CWE-22)

2017-04-05 cve@mitre.org

Path Traversal Debian Lightdm Ubuntu Linux

7.3

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.3 HIGH

AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Apr 05, 2017 - 06:59 cve.org

HIGH 7.3

DescriptionCVE.org

AnalysisAI

In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user. Rated high severity (CVSS 7.3), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user logs out. Affected products include: Lightdm Project Lightdm, Canonical Ubuntu Linux. Version information: through 1.22.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.