CVE-2021-27653 : Misconfiguration of the Pega Chat Access Group portal in Pega platform 7.4.0

Misconfiguration of the Pega Chat Access Group portal in Pega platform 7.4.0 - 8.5.x could lead to unintended data exposure.

Published 2021-04-01 19:15:14

Updated 2022-04-25 20:13:41

Source Pegasystems Inc.

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2021-27653

Pega » Infinity
Versions from including (>=) 7.4.0 and before (<) 8.5.3
cpe:2.3:a:pega:infinity:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.26%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 47 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:P/I:N/A:N	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
4.9	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N	1.2	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
6.6	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H	0.7	5.9	Pegasystems Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Assigned by: security@pega.com (Secondary)

https://robertwillishacking.com/census-vulnerability-exposes-10k-oauth-tokens-thousands-of-user-records/

Census Vulnerability Exposes 10k OAuth Tokens, Thousands of User Records – @rej_ex
Exploit;Third Party Advisory
https://collaborate.pega.com/discussion/pega-security-advisory-%E2%80%93-b21

Pega Security Advisory – B21 | Collaboration Center
Vendor Advisory

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