Title: Shingo beep2 Arbitrary File Reading Vulnerability
Severity: LOW
Description:
beep2 is a utility included with some linux distributions. This program is a warning-tone type program that accepts command line input and generates tones. If installed suid root, it allows reading of arbitrary files. This is done by including the name of the file to be read on the command line. This feature is included to allow preset tone options to be read from a file, but because the files contents are output in error messages when this file format is invalid it can be used to read files for which the user does not have read access. This ONLY affects systems on which beep2 is installed suid root.
Affected Products:
- Kondara MNU/Linux 2.0.0
- YAMAGUCHI Shingo beep2 1.0.0
- YAMAGUCHI Shingo beep2 1.0.0a
- YAMAGUCHI Shingo beep2 1.1.0
- YAMAGUCHI Shingo beep2 1.2.0
References:
- Shadow Penguin Security: SPS Advisory #45 - beep2 allows reading of non-permitted file
- YAMAGUCHI Shingo: beep2 official page
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