A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4.

The remote host is affected by the vulnerability described in GLSA-202405-22 (rsync: Multiple Vulnerabilities)

  - zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many     distant matches. (CVE-2018-25032)

  - A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host     mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-     the-middle attack using a valid certificate for another hostname which could compromise confidentiality     and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data     confidentiality and integrity. This flaw affects rsync versions before 3.2.4. (CVE-2020-14387)

  - An issue was discovered in rsync before 3.2.5 that allows malicious remote servers to write arbitrary     files inside the directories of connecting peers. The server chooses which files/directories are sent to     the client. However, the rsync client performs insufficient validation of file names. A malicious rsync     server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the rsync client target directory     and subdirectories (for example, overwrite the .ssh/authorized_keys file). (CVE-2022-29154)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host
    mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-
    the-middle attack using a valid certificate for another hostname which could compromise confidentiality
    and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data
    confidentiality and integrity. This flaw affects rsync versions before 3.2.4. (CVE-2020-14387)

  - An issue was discovered in rsync before 3.2.5 that allows malicious remote servers to write arbitrary
    files inside the directories of connecting peers. The server chooses which files/directories are sent to
    the client. However, the rsync client performs insufficient validation of file names. A malicious rsync
    server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the rsync client target directory
    and subdirectories (for example, overwrite the .ssh/authorized_keys file). (CVE-2022-29154)

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host
    mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-
    the-middle attack using a valid certificate for another hostname which could compromise confidentiality
    and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data
    confidentiality and integrity. This flaw affects rsync versions before 3.2.4. (CVE-2020-14387)

An update of the rsync package has been released.

ID	Name	Product	Family	Severity
195162	GLSA-202405-22 : rsync: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high
406952	Alpine: rsync: security update to 3.2.4-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
406952	Alpine: rsync: security update to 3.2.4-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
406947	Alpine: rsync: security update to 0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
406947	Alpine: rsync: security update to 0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
150934	Photon OS 4.0: Rsync PHSA-2021-4.0-0046	Nessus	PhotonOS Local Security Checks	high

Detections

Analytics

CVE-2020-14387

high

Tenable Plugins

high

high

high

high

high

high