Apple Mac OS X up to 10.9.3 link following

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple Mac OS X up to 10.9.3. It has been classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to link following. This vulnerability is listed as CVE-2014-3537. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple Mac OS X up to 10.9.3 (Operating System). It has been rated as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The web interface in CUPS before 1.7.4 allows local users in the lp group to read arbitrary files via a symlink attack on a file in /var/cache/cups/rss/.

The weakness was presented 10/16/2014 by Francisco Alonso with Red Hat Security Response Team as HT6535 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2014-3537 since 05/14/2014. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

When the CUPS web interface served files, it would follow symlinks. A local user could create symlinks to arbitrary files and retrieve them through the web interface.

The vulnerability scanner Nessus provides a plugin with the ID 77149 (CUPS 1.7.x < 1.7.5 'get_file' Function Symlink Handling Info Disclosure), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc.. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350813 (Amazon Linux Security Advisory for cups: AL2012-2015-018).

Upgrading to version 10.10 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

This issue was addressed by disallowing symlinks to be served via the CUPS web interface.

The vulnerability is also documented in the databases at X-Force (94749), Tenable (77149), SecurityFocus (BID 68788†), Secunia (SA59945†) and SecurityTracker (ID 1031063†). See VDB-67187, VDB-67241, VDB-67995 and VDB-67996 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 77149
Nessus Name: CUPS 1.7.x < 1.7.5 'get_file' Function Symlink Handling Info Disclosure
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 702990
OpenVAS Name: Debian Security Advisory DSA 2990-1 (cups - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Mac OS X 10.10

Timelineinfo

05/14/2014 🔍
07/18/2014 +65 days 🔍
07/19/2014 +1 days 🔍
07/19/2014 +0 days 🔍
07/23/2014 +4 days 🔍
07/27/2014 +4 days 🔍
08/12/2014 +16 days 🔍
10/16/2014 +65 days 🔍
10/16/2014 +0 days 🔍
10/17/2014 +1 days 🔍
10/17/2014 +0 days 🔍
02/23/2022 +2686 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT6535
Researcher: Francisco Alonso
Organization: Red Hat Security Response Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3537 (🔍)
GCVE (CVE): GCVE-0-2014-3537
GCVE (VulDB): GCVE-100-68003

OVAL: 🔍

X-Force: 94749
SecurityFocus: 68788 - CUPS Web Interface CVE-2014-3537 Local Privilege Escalation Vulnerability
Secunia: 59945 - CUPS Symlink Information Disclosure Weaknesses, Not Critical
SecurityTracker: 1031063 - Apple OS X Multiple Flaws Let Users Execute Arbitrary Code, Obtain Elevated Privileges, Bypass Security Restrictions, and Obtain Potentially Sensitive Information
Vulnerability Center: 45618 - Apple CUPS prior to 1.7.4 Local var/cache/cups/rss/ Symlink Attack Allows Reading Access to Arbitrary Files, Low

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 10/17/2014 10:22
Updated: 02/23/2022 10:18
Changes: 10/17/2014 10:22 (84), 06/03/2017 07:31 (8), 02/23/2022 10:18 (3)
Complete: 🔍
Cache ID: 216:8D8:103

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