CVE-2021-27899
Proofpoint Insider Threat Management Agent SSL/TLS Certificate Validation Vulnerability
Description
The Proofpoint Insider Threat Management Agents (formerly ObserveIT Agent) for MacOS and Linux perform improper validation of the ITM Server's certificate, which enables a remote attacker to intercept and alter these communications using a man-in-the-middle attack. All versions before 7.11.1 are affected. Agents for Windows and Cloud are not affected.
INFO
Published Date :
April 6, 2021, 9:15 p.m.
Last Modified :
April 12, 2021, 4:26 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.2
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-2021-27899.
| URL | Resource |
|---|---|
| https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0004 | 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-2021-27899 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-27899 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 -
Initial Analysis by [email protected]
Apr. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0004 No Types Assigned https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0004 Vendor Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:linux:*:* versions from (including) 7.9.0 up to (excluding) 7.9.3 *cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:linux:*:* versions from (including) 7.10.0 up to (excluding) 7.10.3 *cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:linux:*:* versions from (including) 7.11.0 up to (excluding) 7.11.1 Added CPE Configuration OR *cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:macos:*:* versions from (including) 7.9.0 up to (excluding) 7.9.3 *cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:macos:*:* versions from (including) 7.10.0 up to (excluding) 7.10.3 *cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:macos:*:* versions from (including) 7.11.0 up to (excluding) 7.11.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-27899 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-2021-27899
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.19 }} 0.00%
score
0.56305
percentile