CVEvulnerability
CVE-2009-0641
9.3 HIGH
Official page ↗
- Status
- Modified
- Published
- 2009-02-20
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-16, CWE-264
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.
Affected configurations
• freebsd freebsd 7.0
• freebsd freebsd 7.0-release
• freebsd freebsd 7.0 beta4
• freebsd freebsd 7.0 releng
• freebsd freebsd 7.1
Related
References
- http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.html Exploit
- http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.asc Patch
- http://www.securityfocus.com/bid/33777 Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48780 exchange.xforce.ibmcloud.com
- https://www.exploit-db.com/exploits/8055 www.exploit-db.com
- http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.html Exploit
- http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.asc Patch
- http://www.securityfocus.com/bid/33777 Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48780 exchange.xforce.ibmcloud.com
- https://www.exploit-db.com/exploits/8055 www.exploit-db.com