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Amazon Linux AMI: CVE-2024-12087: Security patch for rsync (ALAS-2025-1955)

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Amazon Linux AMI: CVE-2024-12087: Security patch for rsync (ALAS-2025-1955)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
01/14/2025
Created
01/21/2025
Added
01/18/2025
Modified
01/18/2025

Description

A path traversal vulnerability exists in rsync. It stems from behavior enabled by the `--inc-recursive` option, a default-enabled option for many client options and can be enabled by the server even if not explicitly enabled by the client. When using the `--inc-recursive` option, a lack of proper symlink verification coupled with deduplication checks occurring on a per-file-list basis could allow a server to write files outside of the client's intended destination directory. A malicious server could write malicious files to arbitrary locations named after valid directories/paths on the client.

Solution(s)

  • amazon-linux-upgrade-rsync

References

  • ALAS-2025-1955
  • CVE-2024-12087
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