Published: 20/02/2009 Updated: 29/09/2017

CVSS v2 Base Score: 9.3 | Impact Score: 10 | Exploitability Score: 8.6

VMScore: 935

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

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 malicious users 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.

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freebsd freebsd 7.1
freebsd freebsd 7.0
freebsd freebsd 7.0-release
freebsd freebsd 7.0_beta4
freebsd freebsd 7.0_releng

FreeBSD (70-RELEASE) telnet daemon local privilege escalation - And possible remote root code excution There is a rather big bug in the current FreeBSD telnetd daemon The environment is not properly sanitized when execution /bin/login, what leads to a (possible) remote root hole The telnet protocol allows to pass environment variables inside ...

CWE-264 CWE-16 http://www.securityfocus.com/bid/33777 http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.html http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.asc https://exchange.xforce.ibmcloud.com/vulnerabilities/48780 https://www.exploit-db.com/exploits/8055 https://nvd.nist.gov https://www.exploit-db.com/exploits/8055/

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CVE-2009-0641

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