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      Last Modified:  12/30/1992

Quick Info

CVE Dictionary Entry:
CVE-1999-1021
Original release date:
12/30/1992
Last revised:
10/09/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.2 HIGH
Vector:
(AV:L/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore:
10.0
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/117&type=0&nav=sec.sba Patch External Source SUN 00117
http://www.cert.org/advisories/CA-1992-15.html Patch; Third Party Advisory; US Government Resource External Source CERT CA-1992-15
http://www.securityfocus.com/bid/47 Patch; Vendor Advisory External Source BID 47
https://exchange.xforce.ibmcloud.com/vulnerabilities/82 External Source XF nfs-uid(82)

Technical Details

Vulnerability Type (View All)

Change History 3 change records found - show changes