8.6
HIGH
CVE-2020-2099
Jenkins Key Reuse Inbound TCP Agent Protocol Encryption Vulnerability
Description

Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.

INFO

Published Date :

Jan. 29, 2020, 4:15 p.m.

Last Modified :

Oct. 25, 2023, 6:16 p.m.

Remotely Exploitable :

Yes !

Impact Score :

4.7

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-2099 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 Jenkins jenkins
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-2020-2099.

URL Resource
http://www.openwall.com/lists/oss-security/2020/01/29/1 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHBA-2020:0402
https://access.redhat.com/errata/RHBA-2020:0675
https://access.redhat.com/errata/RHSA-2020:0681
https://access.redhat.com/errata/RHSA-2020:0683
https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682 Vendor 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-2020-2099 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-2099 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 [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 25, 2023

    Action Type Old Value New Value
    Removed CWE Jenkins Project CWE-323
  • CVE Modified by [email protected]

    Mar. 19, 2020

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2020:0683 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 18, 2020

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2020:0681 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 17, 2020

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHBA-2020:0675 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHBA-2020:0402 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 30, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
    Changed Reference Type http://www.openwall.com/lists/oss-security/2020/01/29/1 No Types Assigned http://www.openwall.com/lists/oss-security/2020/01/29/1 Mailing List, Third Party Advisory
    Changed Reference Type https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682 No Types Assigned https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682 Vendor Advisory
    Added CWE NIST CWE-330
    Added CPE Configuration OR *cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* versions up to (including) 2.204.1 *cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* versions up to (including) 2.218
  • CVE Modified by [email protected]

    Jan. 29, 2020

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2020/01/29/1 [No Types Assigned]
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-2020-2099 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-2020-2099 weaknesses.

Exploit Prediction

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

0.45 }} 0.13%

score

0.75177

percentile

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