4.8
MEDIUM
CVE-2020-26234
Opencast HTTPS Hostname Verification Disable
Description

Opencast before versions 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. This problem is fixed in Opencast 7.9 and Opencast 8.8 Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate.

INFO

Published Date :

Dec. 8, 2020, 11:15 p.m.

Last Modified :

Nov. 21, 2024, 5:19 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

1.2
Affected Products

The following products are affected by CVE-2020-26234 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apereo opencast
: Total Affected Vendor : 1 | Products : 1
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-2020-26234.

URL Resource
https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc Patch Third Party Advisory
https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6 Third Party Advisory
https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc Patch Third Party Advisory
https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6 Third Party Advisory

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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-26234 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-26234 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/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc
    Added Reference https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 10, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:H/Au:S/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc No Types Assigned https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc Patch, Third Party Advisory
    Changed Reference Type https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6 No Types Assigned https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6 Third Party Advisory
    Added CWE NIST CWE-346
    Added CPE Configuration OR *cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:* versions up to (excluding) 7.9 *cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:* versions from (including) 8.0 up to (excluding) 8.9
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-26234 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-2020-26234 weaknesses.

CAPEC-21: Exploitation of Trusted Identifiers Exploitation of Trusted Identifiers CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-75: Manipulating Writeable Configuration Files Manipulating Writeable Configuration Files CAPEC-76: Manipulating Web Input to File System Calls Manipulating Web Input to File System Calls CAPEC-89: Pharming Pharming CAPEC-111: JSON Hijacking (aka JavaScript Hijacking) JSON Hijacking (aka JavaScript Hijacking) CAPEC-141: Cache Poisoning Cache Poisoning CAPEC-142: DNS Cache Poisoning DNS Cache Poisoning CAPEC-160: Exploit Script-Based APIs Exploit Script-Based APIs CAPEC-384: Application API Message Manipulation via Man-in-the-Middle Application API Message Manipulation via Man-in-the-Middle CAPEC-385: Transaction or Event Tampering via Application API Manipulation Transaction or Event Tampering via Application API Manipulation CAPEC-386: Application API Navigation Remapping Application API Navigation Remapping CAPEC-387: Navigation Remapping To Propagate Malicious Content Navigation Remapping To Propagate Malicious Content CAPEC-388: Application API Button Hijacking Application API Button Hijacking CAPEC-510: SaaS User Request Forgery SaaS User Request Forgery
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} 0.00%

score

0.17086

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: