Vulnerability Monitor

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CVE-2001-1180

FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.

Published

2001-07-10T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.2 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	freebsd	freebsd	4.0	Yes
Operating System	freebsd	freebsd	4.1	Yes
Operating System	freebsd	freebsd	4.2	Yes
Operating System	freebsd	freebsd	4.3	Yes

References

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc ([email protected])
http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.html Exploit, Patch, Vendor Advisory ([email protected])
http://ciac.llnl.gov/ciac/bulletins/l-111.shtml ([email protected])
http://www.kb.cert.org/vuls/id/943633 Patch, Third Party Advisory, US Government Resource ([email protected])
http://www.osvdb.org/1897 ([email protected])
http://www.securityfocus.com/bid/3007 Exploit, Patch, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/6829 ([email protected])
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc (af854a3a-2127-422b-91ae-364da2661108)
http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.html Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://ciac.llnl.gov/ciac/bulletins/l-111.shtml (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/943633 Patch, Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/1897 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/3007 Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/6829 (af854a3a-2127-422b-91ae-364da2661108)