Directory existence disclosure via unchecked root opendir
Published Sep 13, 2022 · Updated Nov 4, 2025
Information disclosure in the calcsize component of Amanda 3.5.1 allows local users to determine whether arbitrary directories exist. The SUID-root calcsize binary passes an attacker-controlled pathname directly to opendir() and exposes success or failure through its output. Exploitation requires access as the backup user and reveals directory existence only; it does not disclose file or directory contents.
Summary
What happened
Information disclosure in the calcsize component of Amanda 3.5.1 allows local users to determine whether arbitrary directories exist. The SUID-root calcsize binary passes an attacker-controlled pathname directly to opendir() and exposes success or failure through its output. Exploitation requires access as the backup user and reveals directory existence only; it does not disclose file or directory contents.
The record
- CVE
- CVE-2022-37703
- Published
- Sep 13, 2022
- Updated
- Nov 4, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1083
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 13, 2022CVE publishedPublication date reported by the CVE source.
- Nov 4, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- calcsize directory-existence proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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