IBM AIX up to 4.2.1 snap /tmp/ibmsupt 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.
8.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in IBM AIX up to 4.2.1 and classified as critical. This impacts an unknown function of the file /tmp/ibmsupt of the component snap. The manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-1999-1405. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in IBM AIX up to 4.2.1 (Operating System). It has been rated as critical. This issue affects an unknown part of the file /tmp/ibmsupt of the component snap. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

snap command in AIX before 4.3.2 creates the /tmp/ibmsupt directory with world-readable permissions and does not remove or clear the directory when snap -a is executed, which could allow local users to access the shadowed password file by creating /tmp/ibmsupt/general/passwd before root runs snap -a.

The weakness was disclosed 02/17/1999 by Larry W. Cashdollar (@_larry0) with Vapid Labs as not defined posting (Bugtraq). It is possible to read the advisory at marc.theaimsgroup.com. The identification of this vulnerability is CVE-1999-1405. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

Upgrading to version 4.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (19300) and SecurityFocus (BID 375†). Statistical analysis made it clear that VulDB provides the best quality 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: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: AIX 4.3

Timelineinfo

02/17/1999 🔍
02/17/1999 +0 days 🔍
02/17/1999 +0 days 🔍
06/20/2014 +5602 days 🔍
06/05/2024 +3638 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: marc.theaimsgroup.com
Researcher: Larry W. Cashdollar (@_larry0)
Organization: Vapid Labs
Status: Not defined

CVE: CVE-1999-1405 (🔍)
GCVE (CVE): GCVE-0-1999-1405
GCVE (VulDB): GCVE-100-14507
SecurityFocus: 375 - AIX snap Insecure Temporary File Creation Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/20/2014 16:51
Updated: 06/05/2024 05:17
Changes: 06/20/2014 16:51 (54), 05/20/2018 11:15 (6), 06/05/2024 05:17 (25)
Complete: 🔍
Cache ID: 216::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 ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!