Title: Total Commands ISO_WinCmd Plugin Multiple Remote Buffer Overflow Vulnerabilities
Severity: HIGH
Description:
The iso_wincmd module is a plugin for accessing ISO images. It is available for Total Commander and other applications. Total Commander is a file manager available for multiple Microsoft Windows platforms.
The iso_wincmd plugin for Total Commander is prone to multiple remote buffer-overflow vulnerabilities because it fails to properly bounds-check user-supplied data prior to using it in a finite-sized buffer.
The problems occur in the 'LoadTree()' and 'ReadHeader()' functions when processing the directory name within a malicious ISO file. Specifically, a directory name consisting of several nested directories can be created to exceed the boundaries specified in the ISO format, and consequently exceed the bounds of a fixed-length stack buffer within the plugin.
An attacker can exploit this issue to execute arbitrary code within the context of the application using the affected plugin.
These issues affect version 1.7.3 beta 3 of the plugin; other versions may also be vulnerable. These issues are reported to affect Total Commander when using the plugin module; other applications using the module may also be affected.
Affected Products:
- Sergey Oblomov iso_wincmd 1.6.10
- Sergey Oblomov iso_wincmd 1.7.3 beta 3
References:
- Sergey Oblomov: iso plugin for Total Commander (read CD-ROM images)
- Tan Chew Keong: iso_wincmd Plugin for Total Commander Buffer Overflow Vulnerability
- Total Commander: Total Commander Homepage
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