In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).

An update of the coredns package has been released.

An update of the calico package has been released.

An update of the flannel 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.

  - etcd: Cross-site request forgery via crafted local POST forms (CVE-2018-1098)

  - etcd: Information discosure via debug function (CVE-2021-28235)

  - DNS rebinding vulnerability found in etcd 3.3.1 and earlier. An attacker can control his DNS records to     direct to localhost, and trick the browser into sending requests to localhost (or any other address).
    (CVE-2018-1099)

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

This plugin has been deprecated as it does not adhere to established standards for this style of check.

The remote Ubuntu 18.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5628-2 advisory.

    USN-5628-1 fixed vulnerabilities in etcd. This update provides the corresponding updates for Ubuntu 18.04     ESM.



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.

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5628-1 advisory.

    It was discovered that etcd incorrectly handled certain specially crafted WAL files. An attacker could     possibly use this issue to cause a denial of service. (CVE-2020-15106, CVE-2020-15112)

    It was discovered that etcd incorrectly handled directory permissions when trying to create a directory     that exists already. An attacker could possibly use this issue to obtain sensitive information.
    (CVE-2020-15113)

    It was discovered that etcd incorrectly handled endpoint setup. An attacker could possibly use this issue     to cause a denial of service. (CVE-2020-15114)

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.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0916 advisory.

    A highly-available key value store for shared configuration.

    Security Fix(es):

    * large slice causes panic in decodeRecord method (CVE-2020-15106)

    * DoS in wal/wal.go (CVE-2020-15112)

    * directories created via os.MkdirAll are not checked for permissions     (CVE-2020-15113)

    * gateway can include itself as an endpoint resulting in resource     exhaustion and leads to DoS (CVE-2020-15114)

    * improper validation of passwords allow an attacker to guess or     brute-force user's passwords (CVE-2020-15115)

    * no authentication is performed against endpoints provided in the
    --endpoints flag (CVE-2020-15136)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE     page listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Security fix for CVE-2020-15113, CVE-2020-15112, CVE-2020-15114, CVE-2020-15115, CVE-2020-15136, CVE-2020-15106

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

An update of the etcd package has been released.

ID	Name	Product	Family	Severity
204479	Photon OS 4.0: Coredns PHSA-2023-4.0-0420	Nessus	PhotonOS Local Security Checks	high
204433	Photon OS 4.0: Calico PHSA-2023-4.0-0427	Nessus	PhotonOS Local Security Checks	critical
204397	Photon OS 4.0: Flannel PHSA-2023-4.0-0427	Nessus	PhotonOS Local Security Checks	critical
203868	Photon OS 3.0: Coredns PHSA-2023-3.0-0608	Nessus	PhotonOS Local Security Checks	high
203810	Photon OS 3.0: Calico PHSA-2023-3.0-0631	Nessus	PhotonOS Local Security Checks	critical
203783	Photon OS 3.0: Flannel PHSA-2023-3.0-0631	Nessus	PhotonOS Local Security Checks	critical
203562	Photon OS 5.0: Calico PHSA-2023-5.0-0049	Nessus	PhotonOS Local Security Checks	critical
199006	RHEL 7 : etcd (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
196026	RHEL 7 : etcd (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	critical
183128	Ubuntu 18.04 ESM : etcd vulnerabilities (USN-5628-2)	Nessus	Ubuntu Local Security Checks	high
165324	Ubuntu 20.04 LTS : etcd vulnerabilities (USN-5628-1)	Nessus	Ubuntu Local Security Checks	high
147868	RHEL 8 : Red Hat OpenStack Platform 16.1.4 (etcd) (RHSA-2021:0916)	Nessus	Red Hat Local Security Checks	high
144696	Fedora 32 : etcd (2020-cd43b84c16)	Nessus	Fedora Local Security Checks	high
139698	Photon OS 3.0: Etcd PHSA-2020-3.0-0126	Nessus	PhotonOS Local Security Checks	high
139696	Photon OS 1.0: Etcd PHSA-2020-1.0-0313	Nessus	PhotonOS Local Security Checks	high
139608	Photon OS 2.0: Etcd PHSA-2020-2.0-0272	Nessus	PhotonOS Local Security Checks	high

Detections

Analytics

CVE-2020-15113

high

Tenable Plugins

high

critical

critical

high

critical

critical

critical

critical

critical

high

high

high

high

high

high

high