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Advisories

rsync < 3.5.0 Newline Injection via name-converter uid/gid mapping

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severity
medium
date
Affecting

  • rsync <= 3.4.4

CWE
  • CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
revampstudio
Description
rsync before 3.5.0 contains a newline injection vulnerability in the name-converter uid/gid mapping interface that allows local attackers to forge protocol messages by creating user or group names containing newline characters. Attackers can inject malicious newline characters into names communicated over the pipe-based line-oriented protocol to cause the rsync daemon to process attacker-influenced data as legitimate protocol input, corrupting uid/gid mapping logic.

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