Secunia Security Advisory - Alfredo Ortega has reported a vulnerability in the mod_ctrls module for ProFTPD, which can be exploited by malicious, local users to gain escalated privileges.
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TITLE:
ProFTPD "mod_ctrls" Privilege Escalation Vulnerability
SECUNIA ADVISORY ID:
SA23371
VERIFY ADVISORY:
http://secunia.com/advisories/23371/
CRITICAL:
Not critical
IMPACT:
Privilege escalation
WHERE:
>From remote
SOFTWARE:
ProFTPD 1.3.x
http://secunia.com/product/5430/
ProFTPD 1.2.x
http://secunia.com/product/1250/
DESCRIPTION:
Alfredo Ortega has reported a vulnerability in the mod_ctrls module
for ProFTPD, which can be exploited by malicious, local users to gain
escalated privileges.
The vulnerability is caused due to a boundary error within the
"pr_ctrls_recv_request()" function in src/ctrls.c and can be
exploited to cause a buffer overflow by sending specially crafted
control messages to the module.
Successful exploitation may allow to execute arbitrary code with
escalated privileges, but requires that the mod_ctrl module is used
and that ACLs allow the attacker to access the module.
The vulnerability is reported in versions prior to 1.3.1rc1.
SOLUTION:
Update to version 1.3.1rc1.
PROVIDED AND/OR DISCOVERED BY:
Alfredo Ortega, Core Security Technologies.
ORIGINAL ADVISORY:
http://www.coresecurity.com/?module=ContentMod&action=item&id=1594
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