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CVE
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CVE-2009-4146Date: (C)2009-12-02   (M)2023-12-22


The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1, 7.2, and 8.0 does not clear the LD_PRELOAD environment variable, which allows local users to gain privileges by executing a setuid or setguid program with a modified LD_PRELOAD variable containing an untrusted search path that points to a Trojan horse library, a different vector than CVE-2009-4147.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 7.2
Exploit Score: 3.9
Impact Score: 10.0
 
CVSS V2 Metrics:
Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality: COMPLETE
Integrity: COMPLETE
Availability: COMPLETE
  
Reference:
SECTRACK-1023250
http://www.securityfocus.com/archive/1/508142/100/0/threaded
http://www.securityfocus.com/archive/1/508168/100/0/threaded
http://www.securityfocus.com/archive/1/508146/100/0/threaded
BID-37154
SECUNIA-37517
http://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html
http://people.freebsd.org/~cperciva/rtld.patch

CPE    3
cpe:/o:freebsd:freebsd:7.1
cpe:/o:freebsd:freebsd:8.0
cpe:/o:freebsd:freebsd:7.2
CWE    1
CWE-264

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