Vulnerability Details CVE-2009-0641
sys_term.c in telnetd in FreeBSD 7.0-RELEASE and other 7.x versions deletes dangerous environment variables with a method that was valid only in older FreeBSD distributions, which might allow remote attackers to execute arbitrary code by passing a crafted environment variable from a telnet client, as demonstrated by an LD_PRELOAD value that references a malicious library.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.057
EPSS Ranking 90.1%
CVSS Severity
CVSS v2 Score 9.3
References
- http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.html
- http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.asc
- http://www.securityfocus.com/bid/33777
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48780
- https://www.exploit-db.com/exploits/8055
- http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.html
- http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.asc
- http://www.securityfocus.com/bid/33777
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48780
- https://www.exploit-db.com/exploits/8055
Products affected by CVE-2009-0641
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cpe:2.3:o:freebsd:freebsd:7.0
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cpe:2.3:o:freebsd:freebsd:7.0-release
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cpe:2.3:o:freebsd:freebsd:7.0_beta4
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cpe:2.3:o:freebsd:freebsd:7.0_releng
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cpe:2.3:o:freebsd:freebsd:7.1