CVE-2001-1180

Current Description

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.

Basic Data

PublishedJuly 10, 2001
Last ModifiedOctober 10, 2017
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeNVD-CWE-Other
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 2 - Access VectorLOCAL
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactCOMPLETE
CVSS 2 - Availability ImpactCOMPLETE
CVSS 2 - Base Score7.2
SeverityHIGH
Exploitability Score3.9
Impact Score10.0
Obtain All Privilegetrue
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3OSFreebsdFreebsd4.0*******
    2.3OSFreebsdFreebsd4.1*******
    2.3OSFreebsdFreebsd4.2*******
    2.3OSFreebsdFreebsd4.3*******

Vulnerable Software List

VendorProductVersions
Freebsd Freebsd 4.0, 4.1, 4.2, 4.3

References

NameSourceURLTags
FreeBSD-SA-01:42ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.ascFREEBSD
20010710 FreeBSD 4.3 local root, yet Linux and *BSD much better than Windowshttp://archives.neohapsis.com/archives/bugtraq/2001-07/0179.htmlBUGTRAQExploit Patch Vendor Advisory
L-111http://ciac.llnl.gov/ciac/bulletins/l-111.shtmlCIAC
VU#943633http://www.kb.cert.org/vuls/id/943633CERT-VNPatch Third Party Advisory US Government Resource
1897http://www.osvdb.org/1897OSVDB
3007http://www.securityfocus.com/bid/3007BIDExploit Patch Vendor Advisory
bsd-rfork-signal-handlers(6829)https://exchange.xforce.ibmcloud.com/vulnerabilities/6829XF