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Arbitrary Code Injection Affecting busybox package, versions <1.27.2-r4

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.52% (77th percentile)

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  • Snyk ID SNYK-ALPINE311-BUSYBOX-544690
  • published 20 Nov 2017
  • disclosed 20 Nov 2017
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Introduced: 20 Nov 2017

CVE-2017-16544 Open this link in a new tab
CWE-94 Open this link in a new tab

How to fix?

Upgrade Alpine:3.11 busybox to version 1.27.2-r4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Alpine. See How to fix? for Alpine:3.11 relevant fixed versions and status.

In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary file writes, or other attacks.

References

CVSS Scores

version 3.1
Expand this section

NVD

8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High