Sun SunOS 4.1/4.1.1/4.1.2 NFS uid Local Privilege Escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical was found in Sun SunOS 4.1/4.1.1/4.1.2 (Operating System). This vulnerability affects an unknown code of the component NFS. The manipulation of the argument uid with an unknown input leads to a unknown weakness. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 12/30/1992 with CERT as CA-1992-15 as not defined advisory ( The advisory is available at This vulnerability was named CVE-1999-1021. The exploitation appears to be easy. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 47), X-Force (82) and Vulnerability Center (SBV-645). The entries 13650 and 13926 are related to this item.





CPE 2.3infoedit

CPE 2.2infoedit


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: 🔍



VulDB Base Score: 🔍
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NVD Base Score: 🔍


Class: Unknown
CWE: Unknown
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfoedit

Threat: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
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ISS Proventia IPS: 🔍


07/21/1992 🔍
12/30/1992 +162 days 🔍
12/30/1992 +0 days 🔍
12/31/1992 +1 days 🔍
01/06/2003 +3658 days 🔍
06/17/2014 +4180 days 🔍
04/18/2016 +671 days 🔍
05/08/2019 +1114 days 🔍



Advisory: CA-1992-15
Organization: CERT
Status: Not defined

CVE: CVE-1999-1021 (🔍)
SecurityFocus: 47 - SunOS NFS large uid mismatch Vulnerability
X-Force: 82
Vulnerability Center: 645 - SunOS NFS UID Mismatch Allows Unauthorized Root Access, Critical

See also: 🔍


Created: 06/17/2014 12:35 PM
Updated: 05/08/2019 12:29 AM
Changes: (6) advisory_url advisory_company_name source_securityfocus_date source_securityfocus_class source_mcafee_ips_id source_mcafee_ips_version
Complete: 🔍


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