CVE-2020-26160
Okta Jwt-Go Unvalidated Audience Vulnerability
Description
jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check.
INFO
Published Date :
Sept. 30, 2020, 6:15 p.m.
Last Modified :
Nov. 21, 2024, 5:19 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the affected mcg package.
Public PoC/Exploit Available at Github
CVE-2020-26160 has a 10 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-26160.
| URL | Resource |
|---|---|
| https://github.com/dgrijalva/jwt-go/pull/426 | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515 | Third Party Advisory |
| https://github.com/dgrijalva/jwt-go/pull/426 | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515 | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26160 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-26160
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
This is a sample repo with vulnerable docker files and others
Go Java Dockerfile JavaScript Python C# PHP
None
Python C# Go Java JavaScript PHP Dockerfile
None
Go
None
Go
antrea-renovate-lfx
Go
None
Go
None
Go Shell Python
supplychain security
supply-chain golang go-mod
Go Dockerfile
oshka is a tool for extracting nested CI/CD supply chains and executing commands.
github-actions security supply-chain
Makefile Go Dockerfile Shell
List of my contributions to some open source projects
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-26160 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26160 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/dgrijalva/jwt-go/pull/426 Added Reference https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-862 CWE-287 CWE-755 -
Initial Analysis by [email protected]
Oct. 09, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/dgrijalva/jwt-go/pull/426 No Types Assigned https://github.com/dgrijalva/jwt-go/pull/426 Patch, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515 No Types Assigned https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMDGRIJALVAJWTGO-596515 Third Party Advisory Added CWE NIST CWE-862 Added CPE Configuration OR *cpe:2.3:a:jwt-go_project:jwt-go:*:*:*:*:*:*:*:* versions up to (including) 3.2.0
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.02%
score
0.20614
percentile