CVE-2020-15115: Go.etcd.io/etcd/client/v3 Etcd Has No Minimum Password Vulnerability
MODERATECVE-2020-15115 is a MODERATE (CVSS 5.8) etcd has no minimum password vulnerability (CWE-521: Weak Password Requirements) affecting Go.etcd.io/etcd/client/v3 libraries in the Go ecosystem. The issue involves etcd has no minimum password length. Remediation is available by upgrading affected packages to version 3.4.10, 3.3.23.
CVE-2020-15115 at a Glance
Security Impact
CVSS: 5.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N).
How to Fix CVE-2020-15115
To remediate this vulnerability, upgrade all affected Go.etcd.io/etcd/client/v3 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade go.etcd.io/etcd/client/v3 to 3.4.10
Upgrade go.etcd.io/etcd/client/v3 to 3.3.23
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for go.etcd.io/etcd/client/v3
How to Check if You Are Affected
To determine whether your application is affected by CVE-2020-15115, inspect your project dependencies for Go.etcd.io/etcd/client/v3:
inspect dependencies for go.etcd.io/etcd/client/v3
Analyze the terminal output to locate any version of Go.etcd.io/etcd/client/v3 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.4.10), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-521: Weak Password Requirements, where the product does not require that users should have strong passwords. In Go.etcd.io/etcd/client/v3, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2020-15115 Affected Go.etcd.io/etcd/client/v3 Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
go.etcd.io/etcd/client/v3
|
Go |
≥ 3.4.0
< 3.4.10
|
3.4.10
|
|
go.etcd.io/etcd/client/v3
|
Go |
< 3.3.23
|
3.3.23
|
References
Frequently Asked Questions
What is CVE-2020-15115?
Which Go.etcd.io/etcd/client/v3 versions are affected?
What version fixes CVE-2020-15115?
Is go.etcd.io/etcd/client/v3 affected?
What is the CVSS score of CVE-2020-15115?
What CWE is associated with CVE-2020-15115?
How can I check Go dependencies for CVE-2020-15115?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-4993-m7g5-r9hh",
"modified" : "2022-10-06T23:14:23Z",
"published" : "2022-10-06T23:14:23Z",
"aliases" : [ "CVE-2020-15115" ],
"summary" : "etcd has no minimum password length",
"details" : "### Vulnerability type\nAccess Control\n\n### Workarounds\nThe 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](https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/authentication.md#notes-on-password-strength).\n\n### Detail\netcd 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.\n\n### References\nFind out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/master/security/security-release-process.md#product-security-committee-psc)",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "go.etcd.io/etcd/client/v3"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "3.4.0"
}, {
"fixed" : "3.4.10"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "go.etcd.io/etcd/client/v3"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "3.3.23"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/etcd-io/etcd/security/advisories/GHSA-4993-m7g5-r9hh"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-15115"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/etcd-io/etcd"
}, {
"type" : "WEB",
"url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-521" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2022-10-06T23:14:23Z",
"nvd_published_at" : "2020-08-06T22:15:00Z"
}
}