VDB-14138 · CVE-1999-1492 · XFDB 2104

SGI IRIX 6.4 diskalign/diskperf Local Privilege Escalation

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.
8.0	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in SGI IRIX 6.4. This vulnerability affects unknown code of the file diskalign/diskperf. Such manipulation leads to Local Privilege Escalation. This vulnerability is listed as CVE-1999-1492. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in SGI IRIX 6.4 (Operating System). It has been rated as critical. Affected by this issue is an unknown code block of the file diskalign/diskperf. The manipulation with an unknown input leads to a local privilege escalation vulnerability. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Vulnerability in (1) diskperf and (2) diskalign in IRIX 6.4 allows local attacker to create arbitrary root owned files, leading to root privileges.

The issue has been introduced in 11/01/1996. The weakness was presented 05/27/1998 by FIRST as not defined advisory (Website). The advisory is available at patches.sgi.com. This vulnerability is handled as CVE-1999-1492. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 572 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (2104) and SecurityFocus (BID 348†). See VDB-14137 for similar entry. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Operating System

Vendor

Name

IRIX

Version

License

commercial

Support

end of life (old version)

Website

Vendor: http://www.sgi.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Local Privilege Escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/01/1996 🔍
05/27/1998 +572 days 🔍
05/27/1998 +0 days 🔍
05/27/1998 +0 days 🔍
06/19/2014 +5867 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Vendor: sgi.com

Advisory: patches.sgi.com⛔
Researcher: FIRST
Status: Confirmed

CVE: CVE-1999-1492 (🔍)
GCVE (CVE): GCVE-0-1999-1492
GCVE (VulDB): GCVE-100-14138
X-Force: 2104
SecurityFocus: 348 - IRIX diskalign/diskperf Vulnerabilities

See also: 🔍

Entryinfo

Created: 06/19/2014 15:30
Updated: 04/17/2026 11:58
Changes: 06/19/2014 15:30 (53), 04/11/2019 21:11 (4), 04/17/2026 11:58 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.