The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact by sending crafted data to the daemon.

An update of the rsync package has been released.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - rsync: daemon does not check for fnamecmp filenames allowing for access restriction bypass     (CVE-2017-17434)

  - rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink attack on a file in the     synchronization path. (CVE-2014-9512)

  - rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which makes it easier for remote     attackers to bypass intended access restrictions. NOTE: the rsync development branch has significant use     beyond the rsync developers, e.g., the code has been copied for use in various GitHub projects.
    (CVE-2017-15994)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - rsync: daemon does not check for fnamecmp filenames allowing for access restriction bypass     (CVE-2017-17434)

  - rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink attack on a file in the     synchronization path. (CVE-2014-9512)

  - rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which makes it easier for remote     attackers to bypass intended access restrictions. NOTE: the rsync development branch has significant use     beyond the rsync developers, e.g., the code has been copied for use in various GitHub projects.
    (CVE-2017-15994)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - rsync: daemon does not check for fnamecmp filenames allowing for access restriction bypass     (CVE-2017-17434)

  - rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink attack on a file in the     synchronization path. (CVE-2014-9512)

  - rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which makes it easier for remote     attackers to bypass intended access restrictions. NOTE: the rsync development branch has significant use     beyond the rsync developers, e.g., the code has been copied for use in various GitHub projects.
    (CVE-2017-15994)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

According to the versions of the rsync package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - The receive_xattr function in xattrs.c in rsync 3.1.2     and 3.1.3-development does not check for a trailing     '\0' character in an xattr name, which allows remote     attackers to cause a denial of service (heap-based     buffer over-read and application crash) or possibly     have unspecified other impact by sending crafted data     to the daemon.(CVE-2017-16548)

  - The parse_arguments function in options.c in rsyncd in     rsync before 3.1.3 does not prevent multiple
    --protect-args uses, which allows remote attackers to     bypass an argument-sanitization protection     mechanism.(CVE-2018-5764)

  - The recv_files function in receiver.c in the daemon in     rsync 3.1.2, and 3.1.3-development before 2017-12-03,     proceeds with certain file metadata updates before     checking for a filename in the daemon_filter_list data     structure, which allows remote attackers to bypass     intended access restrictions.(CVE-2017-17433)

  - rsync 3.1.3-development before 2017-10-24 mishandles     archaic checksums, which makes it easier for remote     attackers to bypass intended access restrictions. NOTE:
    the rsync development branch has significant use beyond     the rsync developers, e.g., the code has been copied     for use in various GitHub projects.(CVE-2017-15994)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the rsync package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - The receive_xattr function in xattrs.c in rsync 3.1.2     and 3.1.3-development does not check for a trailing     '\\0' character in an xattr name, which allows remote     attackers to cause a denial of service (heap-based     buffer over-read and application crash) or possibly     have unspecified other impact by sending crafted data     to the daemon.(CVE-2017-16548)

  - The parse_arguments function in options.c in rsyncd in     rsync before 3.1.3 does not prevent multiple
    --protect-args uses, which allows remote attackers to     bypass an argument-sanitization protection     mechanism.(CVE-2018-5764)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the rsync package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The parse_arguments function in options.c in rsyncd in     rsync before 3.1.3 does not prevent multiple
    --protect-args uses, which allows remote attackers to     bypass an argument-sanitization protection     mechanism.(CVE-2018-5764)

  - The receive_xattr function in xattrs.c in rsync 3.1.2     and 3.1.3-development does not check for a trailing     '\\0' character in an xattr name, which allows remote     attackers to cause a denial of service (heap-based     buffer over-read and application crash) or possibly     have unspecified other impact by sending crafted data     to the daemon.(CVE-2017-16548)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

New rsync packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3543-1 advisory.

    It was discovered that rsync incorrectly handled certain data input. An attacker could possibly use this     to cause a denial of service or execute arbitrary code. (CVE-2017-16548)

    It was discovered that rsync incorrectly parsed certain arguments. An attacker could possibly use this to     bypass arguments and execute arbitrary code. (CVE-2018-5764)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

This update for rsync fixes several issues. These security issues were fixed :

  - CVE-2017-17434: The daemon in rsync did not check for     fnamecmp filenames in the daemon_filter_list data     structure (in the recv_files function in receiver.c) and     also did not apply the sanitize_paths protection     mechanism to pathnames found in 'xname follows' strings     (in the read_ndx_and_attrs function in rsync.c), which     allowed remote attackers to bypass intended access     restrictions' (bsc#1071460).

  - CVE-2017-17433: The recv_files function in receiver.c in     the daemon in rsync, proceeded with certain file     metadata updates before checking for a filename in the     daemon_filter_list data structure, which allowed remote     attackers to bypass intended access restrictions     (bsc#1071459).

  - CVE-2017-16548: The receive_xattr function in xattrs.c     in rsync did not check for a trailing '\\0' character in     an xattr name, which allowed remote attackers to cause a     denial of service (heap-based buffer over-read and     application crash) or possibly have unspecified other     impact by sending crafted data to the daemon     (bsc#1066644).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for rsync fixes the following issues: Security issues fixed :

  - CVE-2017-17434: The daemon in rsync did not check for     fnamecmp filenames in the daemon_filter_list data     structure (in the recv_files function in receiver.c) and     also did not apply the sanitize_paths protection     mechanism to pathnames found in 'xname follows' strings     (in the read_ndx_and_attrs function in rsync.c), which     allowed remote attackers to bypass intended access     restrictions' (bsc#1071460).

  - CVE-2017-17433: The recv_files function in receiver.c in     the daemon in rsync, proceeded with certain file     metadata updates before checking for a filename in the     daemon_filter_list data structure, which allowed remote     attackers to bypass intended access restrictions     (bsc#1071459).

  - CVE-2017-16548: The receive_xattr function in xattrs.c     in rsync did not check for a trailing '\\0' character in     an xattr name, which allowed remote attackers to cause a     denial of service (heap-based buffer over-read and     application crash) or possibly have unspecified other     impact by sending crafted data to the daemon     (bsc#1066644).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201801-16 (rsync: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in rsync. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could bypass intended access restrictions or cause a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

This update for rsync fixes the several issues.

These security issues were fixed :

  - CVE-2017-17434: The daemon in rsync did not check for     fnamecmp filenames in the daemon_filter_list data     structure (in the recv_files function in receiver.c) and     also did not apply the sanitize_paths protection     mechanism to pathnames found in 'xname follows' strings     (in the read_ndx_and_attrs function in rsync.c), which     allowed remote attackers to bypass intended access     restrictions' (bsc#1071460).

  - CVE-2017-17433: The recv_files function in receiver.c in     the daemon in rsync, proceeded with certain file     metadata updates before checking for a filename in the     daemon_filter_list data structure, which allowed remote     attackers to bypass intended access restrictions     (bsc#1071459).

  - CVE-2017-16548: The receive_xattr function in xattrs.c     in rsync did not check for a trailing '\\0' character in     an xattr name, which allowed remote attackers to cause a     denial of service (heap-based buffer over-read and     application crash) or possibly have unspecified other     impact by sending crafted data to the daemon     (bsc#1066644).

  - CVE-2014-9512: Prevent attackers to write to arbitrary     files via a symlink attack on a file in the     synchronization path (bsc#915410).

These non-security issues were fixed :

  - Stop file upload after errors like a full disk     (boo#1062063)

  - Ensure -X flag works even when setting owner/group     (boo#1028842)

Several vulnerabilities were discovered in rsync, a fast, versatile, remote (and local) file-copying tool, allowing a remote attacker to bypass intended access restrictions or cause a denial of service.

For Debian 7 'Wheezy', these problems have been fixed in version 3.0.9-4+deb7u1.

We recommend that you upgrade your rsync packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Jeriko One reports :

The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact by sending crafted data to the daemon.

The recv_files function in receiver.c in the daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, proceeds with certain file metadata updates before checking for a filename in the daemon_filter_list data structure, which allows remote attackers to bypass intended access restrictions.

The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not check for fnamecmp filenames in the daemon_filter_list data structure (in the recv_files function in receiver.c) and also does not apply the sanitize_paths protection mechanism to pathnames found in 'xname follows' strings (in the read_ndx_and_attrs function in rsync.c), which allows remote attackers to bypass intended access restrictions.

Several vulnerabilities were discovered in rsync, a fast, versatile, remote (and local) file-copying tool, allowing a remote attacker to bypass intended access restrictions or cause a denial of service.

According to the version of the rsync package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - The receive_xattr function in xattrs.c in rsync 3.1.2     and 3.1.3-development does not check for a trailing     '\\0' character in an xattr name, which allows remote     attackers to cause a denial of service (heap-based     buffer over-read and application crash) or possibly     have unspecified other impact by sending crafted data     to the daemon.(CVE-2017-16548)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
202787	Photon OS 1.0: Rsync PHSA-2017-0052	Nessus	PhotonOS Local Security Checks	critical
199479	RHEL 7 : rsync (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
199467	RHEL 6 : rsync (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
199412	RHEL 5 : rsync (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
135659	EulerOS Virtualization 3.0.2.2 : rsync (EulerOS-SA-2020-1497)	Nessus	Huawei Local Security Checks	critical
128947	EulerOS Virtualization for ARM 64 3.0.2.0 : rsync (EulerOS-SA-2019-1944)	Nessus	Huawei Local Security Checks	critical
128098	EulerOS 2.0 SP5 : rsync (EulerOS-SA-2019-1806)	Nessus	Huawei Local Security Checks	critical
121775	Photon OS 2.0: Rsync PHSA-2017-0051	Nessus	PhotonOS Local Security Checks	critical
106565	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 / current : rsync (SSA:2018-032-02)	Nessus	Slackware Local Security Checks	critical
106295	Ubuntu 14.04 LTS / 16.04 LTS : rsync vulnerabilities (USN-3543-1)	Nessus	Ubuntu Local Security Checks	critical
106129	SUSE SLED12 / SLES12 Security Update : rsync (SUSE-SU-2018:0118-1)	Nessus	SuSE Local Security Checks	critical
106128	SUSE SLES11 Security Update : rsync (SUSE-SU-2018:0117-1)	Nessus	SuSE Local Security Checks	critical
106087	GLSA-201801-16 : rsync: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
106063	openSUSE Security Update : rsync (openSUSE-2018-34)	Nessus	SuSE Local Security Checks	critical
105425	Debian DLA-1218-1 : rsync security update	Nessus	Debian Local Security Checks	critical
105406	FreeBSD : rsync -- multiple vulnerabilities (72fff788-e561-11e7-8097-0800271d4b9c)	Nessus	FreeBSD Local Security Checks	critical
105332	Debian DSA-4068-1 : rsync - security update	Nessus	Debian Local Security Checks	critical
105314	EulerOS 2.0 SP2 : rsync (EulerOS-SA-2017-1333)	Nessus	Huawei Local Security Checks	critical
105313	EulerOS 2.0 SP1 : rsync (EulerOS-SA-2017-1332)	Nessus	Huawei Local Security Checks	critical

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CVE-2017-16548

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