IBM AIX 6.1/7.1 libodm link following

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.
7.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in IBM AIX 6.1/7.1. This issue affects some unknown processing in the library libodm. Performing a manipulation results in link following. This vulnerability is cataloged as CVE-2014-3977. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in IBM AIX 6.1/7.1 (Operating System). It has been classified as critical. This affects an unknown code in the library libodm. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

libodm.a in IBM AIX 6.1 and 7.1, and VIOS 2.2.x, allows local users to overwrite arbitrary files via a symlink attack on a temporary file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-2179.

The issue has been introduced in 11/09/2007. The weakness was shared 05/23/2014 by Jakub Wartak as libodm_advisory.asc as confirmed advisory (Website). It is possible to read the advisory at aix.software.ibm.com. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2014-3977 since 06/05/2014. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed by Portcullis and been published 3 weeks after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2387 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 74193 (AIX 6.1 TL 8 : libodm (IV60311)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120862 (IBM AIX "libodm" File Overwrite Vulnerability). The advisory illustrates:

To determine if your system is vulnerable, execute the following command: lslpp -L bos.rte.odm

Applying the patch IV60313/IV60311/IV60299/IV60312/IV60314/IV60303 is able to eliminate this problem. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (93595), Exploit-DB (33725), Tenable (74193), SecurityFocus (BID 54122†) and OSVDB (83133†). Further details are available at seclists.org. The entry VDB-61082 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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: 🔍
Access: Public
Status: Proof-of-Concept
Author: Portcullis
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 74193
Nessus Name: AIX 6.1 TL 8 : libodm (IV60311)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Patch: IV60313/IV60311/IV60299/IV60312/IV60314/IV60303

Timelineinfo

11/09/2007 🔍
06/21/2012 +1686 days 🔍
05/23/2014 +701 days 🔍
05/28/2014 +5 days 🔍
05/28/2014 +0 days 🔍
06/03/2014 +6 days 🔍
06/05/2014 +2 days 🔍
06/08/2014 +3 days 🔍
06/09/2014 +1 days 🔍
06/09/2014 +0 days 🔍
06/11/2014 +2 days 🔍
06/12/2014 +1 days 🔍
06/12/2014 +0 days 🔍
12/16/2024 +3840 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: libodm_advisory.asc
Researcher: Jakub Wartak
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2014-3977 (🔍)
GCVE (CVE): GCVE-0-2014-3977
GCVE (VulDB): GCVE-100-13479

OVAL: 🔍

X-Force: 93595 - IBM AIX Arbitary file overwrite symlink in libodm, Medium Risk
SecurityFocus: 54122 - IBM AIX Temporary File Creation Vulnerability
OSVDB: 83133
SecurityTracker: 1030401 - IBM AIX libodm Symlink Flaw Lets Local Users Gain Elevated Privileges
Vulnerability Center: 44823 - IBM AIX 6.1, 7.1 Local Symlink Attack in libodm.a, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 06/09/2014 17:09
Updated: 12/16/2024 08:07
Changes: 06/09/2014 17:09 (91), 05/30/2017 10:54 (8), 06/20/2021 18:10 (3), 06/05/2024 09:54 (20), 12/16/2024 08:07 (2)
Complete: 🔍
Cache ID: 216:794:103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!