Auth bypass in Proofpoint Insider Threat Management

CVE-2021-27900

The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is missing an authorization check on several pages in the Web Console. This enables a view-only user to change any configuration setting and delete any registered agents. All versions before 7.11.1 are affected.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.025 (83.8th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-27900: held from 0.025 to 0.025.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-27900?
CVE-2021-27900 is a high-severity vulnerability in Proofpoint Insider Threat Management, classified under Missing Authorization. CVSS score: 8.1/10. Published 2021-04-06.
How severe is CVE-2021-27900?
High severity. CVSS v3 base score is 8.1 out of 10.