Bug 2126847 (CVE-2022-37703) - CVE-2022-37703 amanda: information leak (discovery of directory existence)
Summary: CVE-2022-37703 amanda: information leak (discovery of directory existence)
Keywords:
Status: NEW
Alias: CVE-2022-37703
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2126848 2126849
Blocks: 2126837
TreeView+ depends on / blocked
 
Reported: 2022-09-14 14:30 UTC by Sandipan Roy
Modified: 2023-07-07 08:29 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description Sandipan Roy 2022-09-14 14:30:53 UTC 
In Amanda 3.5.1, an information leak vulnerability was found in the calcsize SUID binary. An attacker can abuse this vulnerability to know if a directory exists or not anywhere in the fs. The binary will use `opendir()` as root directly without checking the path, letting the attacker provide an arbitrary path.

http://www.amanda.org/
https://github.com/MaherAzzouzi/CVE-2022-37703
Comment 1 Sandipan Roy 2022-09-14 14:35:04 UTC 
Created amanda tracking bugs for this issue:

Affects: fedora-all [bug 2126849]
Comment 3 Jason Tibbitts 2022-09-14 17:05:13 UTC 
Note that the calcsize binary isn't executable by users in Fedora; the exploit would work only in the exceptional case that the user is in the "disk" group.
Comment 4 Mauro Matteo Cascella 2023-02-27 16:25:46 UTC 
Upstream PR & commit:
https://github.com/zmanda/amanda/pull/198
https://github.com/zmanda/amanda/commit/b1dd708728fcab5e3a49ba5c0fb754776242efc3
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