Denial Of Service (DoS)

github.com/etcd-io/etcd is vulnerable to denial of service. The vulnerability exists in multiple functions of discovery.go because the negative values can be passed as the cluster size which results in an index out-of-bound causing an application crash during service discovery...

etcd having a negative value for cluster node size results in an index out-of-bound panic during service discovery

Vulnerability type Data Validation Detail When an etcd instance attempts to perform service discovery, if a cluster size is provided as a negative value, the etcd instance will panic without recovery. References Find out more on this vulnerability in the security audit report For more information...

GHSA-9GP7-6833-WV89 etcd having a negative value for cluster node size results in an index out-of-bound panic during service discovery

Vulnerability type Data Validation Detail When an etcd instance attempts to perform service discovery, if a cluster size is provided as a negative value, the etcd instance will panic without recovery. References Find out more on this vulnerability in the security audit report For more information...

GHSA-528J-9R78-WFFX etcd user credentials are stored in WAL logs in plaintext

Vulnerability type Data Exposure Workarounds The etcd assumes that the on disk files are secure. The possible fixes have been provided, however, it is the responsibility of the etcd users to make sure that the etcd server WAL log files are secure. The etcd doesn't encrypt key/value data stored on...

etcd user credentials are stored in WAL logs in plaintext

Vulnerability type Data Exposure Workarounds The etcd assumes that the on disk files are secure. The possible fixes have been provided, however, it is the responsibility of the etcd users to make sure that the etcd server WAL log files are secure. The etcd doesn't encrypt key/value data stored on...

etcd has no minimum password length

Vulnerability type Access Control Workarounds The etcdctl and etcd API do not enforce a specific password length during user creation or user password update operations. It is the responsibility of the administrator to enforce these requirements. Detail etcd does not perform any password length...

GHSA-H8G9-6GVH-5MRC etcd vulnerable to TOCTOU of gateway endpoint authentication

Vulnerability type Authentication Workarounds Refer to the gateway documentation. The vulnerability was spotted due to unclear documentation of how the gateway handles endpoints validation. Detail The gateway only authenticates endpoints detected from DNS SRV records, and it only authenticates th...

etcd's WAL `ReadAll` method vulnerable to an entry with large index causing panic

Vulnerability type Data Validation Detail In the ReadAll method in wal/wal.go, it is possible to have an entry index greater then the number of entries. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime...

GHSA-M332-53R6-2W93 etcd's WAL `ReadAll` method vulnerable to an entry with large index causing panic

Vulnerability type Data Validation Detail In the ReadAll method in wal/wal.go, it is possible to have an entry index greater then the number of entries. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime...

PT-2022-28196 · Etcd · Etcd

Name of the Vulnerable Software and Affected Versions: etcd affected versions not specified Description: The issue concerns data exposure due to the storage of user credentials in WAL entries on each user authentication. If the WAL log files are not secure, it can potentially expose sensitive...

etcd having a negative value for cluster node size results in an index out-of-bound panic during service discovery

When an etcd instance attempts to perform service discovery, if a cluster size is provided as a negative value, the etcd instance will panic without recovery...

etcd user credentials are stored in WAL logs in plaintext

The etcd assumes that the on disk files are secure. The possible fixes have been provided, however, it is the responsibility of the etcd users to make sure that the etcd server WAL log files are secure...

PT-2022-28253 · Etcd · Etcd

Name of the Vulnerable Software and Affected Versions: etcd affected versions not specified Description: The issue is related to authentication in the etcd gateway. It only authenticates endpoints detected from DNS SRV records and does so only once. If an endpoint changes its authentication...

etcd vulnerable to TOCTOU of gateway endpoint authentication

The vulnerability was spotted due to unclear documentation of how the gateway handles endpoints validation. Detail The gateway only authenticates endpoints detected from DNS SRV records, and it only authenticates the detected endpoints once...

Improper Validation of Array Index

In etcd before versions 3.3.23 and 3.4.10, it is possible to have an entry index greater then the number of entries in the ReadAll method in wal/wal.go. This could cause issues when WAL entries are being read during consensus as an arbitrary etcd consensus participant could go down from a runtime...

PT-2022-28228 · Etcd · Etcd

Name of the Vulnerable Software and Affected Versions: etcd affected versions not specified Description: The issue occurs when an etcd instance attempts to perform service discovery and a cluster size is provided as a negative value, causing the etcd instance to panic without recovery...

Weak Password Requirements

etcd before versions 3.3.23 and 3.4.10 does not perform any password length validation, which allows for very short passwords, such as those with a length of one. This may allow an attacker to guess or brute-force users' passwords with little computational effort...

Ubuntu: Security Advisory (USN-5628-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-5628-2: etcd vulnerabilities

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

USN-5628-2 etcd vulnerabilities

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