CVE-2022-37705Public exploit

Root command execution via runtar argument injection

Published Apr 16, 2023 · Updated Nov 4, 2025

Argument injection in Amanda 3.5.1 allows local users with backup-account access to execute commands as root through runtar. The setuid-root wrapper increments its good_option counter twice for space-separated tar options, so an equals-delimited option lets the following crafted argument bypass validation and reach /usr/bin/tar unchanged. Access to the local backup account and executable runtar binary is required; successful exploitation grants a root shell and complete host control.

CVSS severity6.7
Medium
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Argument injection in Amanda 3.5.1 allows local users with backup-account access to execute commands as root through runtar. The setuid-root wrapper increments its good_option counter twice for space-separated tar options, so an equals-delimited option lets the following crafted argument bypass validation and reach /usr/bin/tar unchanged. Access to the local backup account and executable runtar binary is required; successful exploitation grants a root shell and complete host control.

The record

CVE
CVE-2022-37705
Published
Apr 16, 2023
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-88, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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