Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | 7.0 |
Related Weaknesses (CWE)
References
- http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.htmlExploit
- http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.ascPatch
- http://www.securityfocus.com/bid/33777Exploit
- 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.htmlExploit
- http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.ascPatch
- http://www.securityfocus.com/bid/33777Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48780
- https://www.exploit-db.com/exploits/8055
FAQ
What is CVE-2009-0641?
CVE-2009-0641 is a vulnerability with a CVSS score of 9.3 (HIGH). 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 a...
How severe is CVE-2009-0641?
CVE-2009-0641 has been rated HIGH with a CVSS base score of 9.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-0641?
Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.