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CVE-2017-7358

Date: April 5, 2017

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.

Language: C

Severity Score

Related Resources (9)

https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-7358
https://www.exploit-db.com/exploits/41923/
https://launchpad.net/bugs/1677924
https://nvd.nist.gov/vuln/detail/CVE-2017-7358
https://www.ubuntu.com/usn/usn-3255-1/
http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478
http://www.securityfocus.com/bid/97486
https://www.mend.io/vulnerability-database/CVE-2017-7358

Severity Score

Weakness Type (CWE)

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-22

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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