CVE-2009-4147

The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1 and 8.0 does not clear the (1) LD_LIBMAP, (2) LD_LIBRARY_PATH, (3) LD_LIBMAP_DISABLE, (4) LD_DEBUG, and (5) LD_ELF_HINTS_PATH environment variables, which allows local users to gain privileges by executing a setuid or setguid program with a modified variable containing an untrusted search path that points to a Trojan horse library, different vectors than CVE-2009-4146.

CVSS v2.0 7.2 HIGH

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://secunia.com/advisories/37517	Vendor Advisory
http://www.securitytracker.com/id?1023250	Patch
http://www.securityfocus.com/bid/37154	Exploit
http://people.freebsd.org/~cperciva/rtld.patch	Patch
http://www.securityfocus.com/archive/1/508146/100/0/threaded
http://www.securityfocus.com/archive/1/508142/100/0/threaded
http://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:freebsd:freebsd:7.1:::::::*
	cpe:2.3:o:freebsd:freebsd:8.0:::::::*

Information

Published : 2009-12-02 11:30

Updated : 2019-05-21 20:29

NVD link : CVE-2009-4147

Mitre link : CVE-2009-4147

JSON object : View

CWE

CWE-264

Permissions, Privileges, and Access Controls

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Products Affected

freebsd

freebsd

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