Access Restriction Bypass Affecting openafs package, versions [,1.6.23)[1.8.0,1.8.2)


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.34% (72nd percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENAFS-2381811
  • published26 Jan 2022
  • disclosed12 Sept 2018
  • creditUnknown

Introduced: 12 Sep 2018

CVE-2018-16947  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade openafs to version 1.6.23, 1.8.2 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. The backup tape controller (butc) process accepts incoming RPCs but does not require (or allow for) authentication of those RPCs. Handling those RPCs results in operations being performed with administrator credentials, including dumping/restoring volume contents and manipulating the backup database. For example, an unauthenticated attacker can replace any volume's content with arbitrary data.

References

CVSS Scores

version 3.1