National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-1999-1021 Detail

Description

NFS on SunOS 4.1 through 4.1.2 ignores the high order 16 bits in a 32 bit UID, which allows a local user to gain root access if the lower 16 bits are set to 0, as fixed by the NFS jumbo patch upgrade.

Source:  MITRE
Description Last Modified:  12/30/1992

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Provides administrator access
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/117&type=0&nav=sec.sba Patch
http://www.cert.org/advisories/CA-1992-15.html Patch Third Party Advisory US Government Resource
http://www.securityfocus.com/bid/47 Patch Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/82

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-1999-1021
NVD Published Date:
12/30/1992
NVD Last Modified:
10/09/2017