cups-filters/Foomatic Print Job util.c Blacklist privileges management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in cups-filters and Foomatic. Impacted is an unknown function of the file util.c of the component Print Job Handler. This manipulation with the input ` causes privileges management (Blacklist). This vulnerability appears as CVE-2015-8327. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in cups-filters and Foomatic (Printing Software) (affected version unknown) and classified as critical. Affected by this vulnerability is an unknown functionality of the file util.c of the component Print Job Handler. The manipulation with the input value ` leads to a privileges management vulnerability (Blacklist). The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Incomplete blacklist vulnerability in util.c in foomatic-rip in cups-filters 1.0.42 before 1.2.0 and in foomatic-filters in Foomatic 4.0.x allows remote attackers to execute arbitrary commands via ` (backtick) characters in a print job.

The weakness was presented 12/17/2015 (Website). It is possible to read the advisory at lists.debian.org. This vulnerability is known as CVE-2015-8327 since 11/24/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 87287 (Debian DLA-365-1 : foomatic-filters security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350848 (Amazon Linux Security Advisory for foomatic: AL2012-2016-130).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87287), SecurityFocus (BID 78524†) and Vulnerability Center (SBV-55358†). See VDB-82393 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Blacklist
Class: Privileges management / Blacklist
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 87287
Nessus Name: Debian DLA-365-1 : foomatic-filters security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703411
OpenVAS Name: Debian Security Advisory DSA 3411-1 (cups-filters - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/24/2015 🔍
12/02/2015 +8 days 🔍
12/02/2015 +0 days 🔍
12/09/2015 +7 days 🔍
12/10/2015 +1 days 🔍
12/17/2015 +7 days 🔍
12/17/2015 +0 days 🔍
12/18/2015 +1 days 🔍
12/22/2015 +4 days 🔍
07/01/2022 +2383 days 🔍

Sourcesinfo

Advisory: USN-2831-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8327 (🔍)
GCVE (CVE): GCVE-0-2015-8327
GCVE (VulDB): GCVE-100-79843

OVAL: 🔍

SecurityFocus: 78524 - cups-filters CVE-2015-8327 Arbitrary Command Execution Vulnerability
Vulnerability Center: 55358 - Cups-filters Remote Code Execution via Backtick in Print Job, High

See also: 🔍

Entryinfo

Created: 12/18/2015 09:31
Updated: 07/01/2022 10:27
Changes: 12/18/2015 09:31 (65), 06/19/2018 21:03 (12), 07/01/2022 10:21 (3), 07/01/2022 10:27 (1)
Complete: 🔍
Cache ID: 216:E50:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!