lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 16 Sep 2005 15:48:14 +0200 From: ZATAZ Audits <exploits@...az.net> To: vuldb@...urityfocus.com, vuln@...unia.com, vuln@...tik.com, moderators@...db.org, bugs@...uritytracker.com, submissions@...ketstormsecurity.org, news@...uriteam.com, xforce@....net, bugtraq@...urityfocus.com, vulnwatch@...nwatch.org, full-disclosure@...ts.grok.org.uk Subject: gwcc insecure temporary file creation ######################################################### gwcc insecure temporary file creation Vendor: http://gwcc.sourceforge.net/ Advisory: http://www.zataz.net/adviso/gwcc-09052005.txt Vendor informed: yes Exploit available: yes Impact : low Exploitation : low ######################################################### The vulnerability is caused due to temporary file being created insecurely. This can be exploited via symlink attacks to create and overwrite arbitrary files with the privileges of the user running the affected script. Secunia report that this bug was discovered by D1g1t4lLeech the 2005-09-16. ZATAZ Audit has discovered this bug the 2005-09-02 So I think that D1g1t4lLeech is a true leecher ;) ########## Versions: ########## gwcc <= 0.9.6-r2 ########## Solution: ########## To prevent symlink attack use kernel patch such as grsecurity Gentoo Patch : http://bugs.gentoo.org/attachment.cgi?id=67477 ######### Timeline: ######### Discovered : 2005-09-02 Vendor notified : 2005-09-05 Vendor response : no reponse Vendor fix : no patch Vendor Sec report (vendor-sec@....de) : 2005-09-13 Disclosure : 2005-09-16 ##################### Technical details : ##################### Vulnerable code : ----------------- Take a look at : src/callbacks.c 1702 // Pipe print command and voila!, the doc is printed. 1703 strcat(print_command, " /tmp/gwcc_out.txt"); And also into : src/utils.c 94 else if (strcmp(operation, "temp") == 0) { 95 strcat(file_name, "/tmp/gwcc_out.txt"); ######### Related : ######### Bug report : http://bugs.gentoo.org/show_bug.cgi?id=104566 CVE : NONE ##################### Credits : ##################### Eric Romang (eromang@...az.net - ZATAZ Audit) - Gentoo Security Scout Thxs to Gentoo Security Team. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Powered by blists - more mailing lists