Full Disclosure mailing list archives
Re: Apache 1.3.37 htpasswd buffer overflow vulnerability
From: Andrew Farmer <andfarm () gmail com>
Date: Tue, 2 Jan 2007 15:45:45 -0800
On 02 Jan 07, at 12:20, Matias Soler wrote:
Synopsis: Apache 1.3.37 htpasswd buffer overflow vulnerability Version: 1.3.37 (latest 1.3.xx) Product ======= Apache htpasswd utility Issue ===== A buffer overflow vilnerability has been found, it is dangerous only on environment where the binary is suid root.
If htpasswd is setuid, then one could just as easily: htpasswd -bp /etc/passwd toor x:0:0:toor::/:/bin/sh htpasswd -bp /etc/shadow toor xxa8fjDF6WqBA:0:0:99999:7::: and get root. (Or any number of things - sudoers, crontab, SSH keys - take your pick.) It's possible that this buffer overflow may be significant in very limited circumstances - if the utility is executed from a web application, perhaps. However, this seems like a rather limited-scope issue. -- Andrew Farmer _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Apache 1.3.37 htpasswd buffer overflow vulnerability Matias Soler (Jan 02)
- Re: Apache 1.3.37 htpasswd buffer overflow vulnerability Andrew Farmer (Jan 03)