SSRF in Concretecms Concrete Cms

CVE-2021-22970

Concrete CMS (formerly concrete5) versions 8.5.6 and below and version 9.0.0 allow local IP importing causing the system to be vulnerable toa. SSRF attacks on the private LAN servers by reading files from the local LAN. An attacker can pivot in the private LAN and exploit local network appsandb. SSRF Mitigation Bypass through DNS RebindingConcrete CMS security team gave this a CVSS score of 3.5 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:NConcrete CMS is maintaining Concrete version 8.5.x until 1 May 2022 for security fixes.This CVE is shared with HackerOne Reports https://hackerone.com/reports/1364797 and https://hackerone.com/reports/1360016Reporters: Adrian Tiron from FORTBRIDGE (https://www.fortbridge.co.uk/ ) and Bipul Jaiswal

Vulnerability class: SSRF (Server-Side Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.015 (73.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.1% 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-2021-22970: held from 0.014 to 0.015.

EPSS over last 30 days · oldest: 0.014 · newest: 0.015 · change: +0.000

Affected products

  • Concretecms Concrete Cms — versions 9.0
  • Https://github.com/concrete5/concrete5 — versions Affected versions Concrete CMS (formerly concrete5) versions below 8.5.6 and 9.0.0. Fixed versions 9.0.1 and 8.5.7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-22970?
CVE-2021-22970 is a high-severity vulnerability in Concretecms Concrete Cms, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2021-11-19.
How severe is CVE-2021-22970?
High severity. CVSS v3 base score is 7.5 out of 10.