CVE-2016-9950 — HIGH (7.8) — White Hats Nepal

Q: How severe is CVE-2016-9950?

CVE-2016-9950 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2016-9950?

Check the references section above for vendor advisories and patch information. Affected products include: Apport Project Apport, Canonical Ubuntu Linux.

Vulnerability Description

An issue was discovered in Apport before 2.20.4. There is a path traversal issue in the Apport crash file "Package" and "SourcePackage" fields. These fields are used to build a path to the package specific hook files in the /usr/share/apport/package-hooks/ directory. An attacker can exploit this path traversal to execute arbitrary Python files from the local system.

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apport Project	Apport	<= 2.20.3
Canonical	Ubuntu Linux	<= 12.10

Related Weaknesses (CWE)

CWE-22

References

http://www.securityfocus.com/bid/95011Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3157-1
https://bugs.launchpad.net/apport/+bug/1648806Issue TrackingPatch
https://donncha.is/2016/12/compromising-ubuntu-desktop/ExploitTechnical DescriptionThird Party Advisory
https://github.com/DonnchaC/ubuntu-apport-exploitationIssue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/40937/
http://www.securityfocus.com/bid/95011Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3157-1
https://bugs.launchpad.net/apport/+bug/1648806Issue TrackingPatch
https://donncha.is/2016/12/compromising-ubuntu-desktop/ExploitTechnical DescriptionThird Party Advisory
https://github.com/DonnchaC/ubuntu-apport-exploitationIssue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/40937/

FAQ

What is CVE-2016-9950?

CVE-2016-9950 is a vulnerability with a CVSS score of 7.8 (HIGH). An issue was discovered in Apport before 2.20.4. There is a path traversal issue in the Apport crash file "Package" and "SourcePackage" fields. These fields are used to build a path to the package spe...

How severe is CVE-2016-9950?

CVE-2016-9950 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-9950?

Check the references section above for vendor advisories and patch information. Affected products include: Apport Project Apport, Canonical Ubuntu Linux.