Sun Solaris 2.3/2.4/2.5/2.5.1 PAM Module memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Sun Solaris 2.3/2.4/2.5/2.5.1 and classified as critical. This impacts an unknown function of the component PAM Module. This manipulation causes memory corruption. This vulnerability is handled as CVE-1999-1158. Additionally, an exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Sun Solaris 2.3/2.4/2.5/2.5.1 (Operating System) and classified as critical. Affected by this vulnerability is an unknown part of the component PAM Module. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in (1) pluggable authentication module (PAM) on Solaris 2.5.1 and 2.5 and (2) unix_scheme in Solaris 2.4 and 2.3 allows local users to gain root privileges via programs that use these modules such as passwd, yppasswd, and nispasswd.

The bug was discovered 02/25/1997. The weakness was released 05/13/1997 by Cristian Schipor as 00139 as not defined advisory (Website). It is possible to read the advisory at sunsolve.sun.com. This vulnerability is known as CVE-1999-1158. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C and been published before and not just after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 77 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (7432), Exploit-DB (341), SecurityFocus (BID 201†) and OSVDB (8216†). Additional details are provided at ftp.auscert.org.au. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/25/1997 🔍
02/25/1997 +0 days 🔍
02/25/1997 +0 days 🔍
05/13/1997 +77 days 🔍
05/13/1997 +0 days 🔍
04/09/2004 +2522 days 🔍
06/17/2014 +3721 days 🔍
04/16/2026 +4321 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: 00139⛔
Researcher: Cristian Schipor
Status: Confirmed

CVE: CVE-1999-1158 (🔍)
GCVE (CVE): GCVE-0-1999-1158
GCVE (VulDB): GCVE-100-13891
X-Force: 7432
SecurityFocus: 201 - Solaris PAM & unix_scheme Vulnerability
OSVDB: 8216 - Solaris Pluggable Authentication Module Local Overflow

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

Entryinfo

Created: 06/18/2014 01:28
Updated: 04/16/2026 19:44
Changes: 06/18/2014 01:28 (57), 05/19/2018 09:47 (12), 12/28/2024 14:14 (18), 04/16/2026 19:44 (1)
Complete: 🔍
Cache ID: 216::103

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

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