5.3
MEDIUM
CVE-2021-29726
IBM Sterling Secure Proxy and IBM Secure External Authentication Server SSL/TLS Certificate Validation Vulnerability
Description

IBM Sterling Secure Proxy 6.0.3 and IBM Secure External Authentication Server 6.0.3 does not properly ensure that a certificate is actually associated with the host due to improper validation of certificates. IBM X-Force ID: 201104.

INFO

Published Date :

May 17, 2022, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 6:01 a.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-29726 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 Ibm sterling_secure_proxy
2 Ibm secure_external_authentication_server
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-2021-29726.

URL Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/201104 VDB Entry Vendor Advisory
https://www.ibm.com/support/pages/node/6586754 Patch Vendor Advisory
https://www.ibm.com/support/pages/node/6586756 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/201104 VDB Entry Vendor Advisory
https://www.ibm.com/support/pages/node/6586754 Patch Vendor Advisory
https://www.ibm.com/support/pages/node/6586756 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-2021-29726 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-29726 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://exchange.xforce.ibmcloud.com/vulnerabilities/201104
    Added Reference https://www.ibm.com/support/pages/node/6586754
    Added Reference https://www.ibm.com/support/pages/node/6586756
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Jan. 24, 2023

    Action Type Old Value New Value
    Removed CPE Configuration OR *cpe:2.3:a:ibm:secure_external_authentication_server:6.0.3:*:*:*:*:*:*:* *cpe:2.3:a:ibm:sterling_secure_proxy:6.0.3:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:ibm:secure_external_authentication_server:6.0.3:*:*:*:*:*:*:* *cpe:2.3:a:ibm:sterling_secure_proxy:6.0.3:*:*:*:*:*:*:*
  • Initial Analysis by [email protected]

    May. 26, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://exchange.xforce.ibmcloud.com/vulnerabilities/201104 No Types Assigned https://exchange.xforce.ibmcloud.com/vulnerabilities/201104 VDB Entry, Vendor Advisory
    Changed Reference Type https://www.ibm.com/support/pages/node/6586754 No Types Assigned https://www.ibm.com/support/pages/node/6586754 Patch, Vendor Advisory
    Changed Reference Type https://www.ibm.com/support/pages/node/6586756 No Types Assigned https://www.ibm.com/support/pages/node/6586756 Vendor Advisory
    Added CWE NIST CWE-295
    Added CPE Configuration OR *cpe:2.3:a:ibm:secure_external_authentication_server:6.0.3:*:*:*:*:*:*:* *cpe:2.3:a:ibm:sterling_secure_proxy:6.0.3:*:*:*:*:*:*:*
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-2021-29726 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-2021-29726 weaknesses.

Exploit Prediction

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

0.11 }} 0.02%

score

0.44517

percentile

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