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[email protected]CVE-2021-22970

HistoryNov 19, 2021 - 7:15 p.m.

CVE-2021-22970

2021-11-1919:15:08

CWE-918

[email protected]

web.nvd.nist.gov

cve-2021-22970

concrete cms

ssrf

lan

ip importing

dns rebinding

security vulnerability

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.0%

JSON

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

Affected configurations

NVD

Node

concretecmsconcrete_cmsRange≤8.5.6

concretecmsconcrete_cmsMatch9.0

CPENameOperatorVersion
concretecms:concrete_cmsconcretecms concrete cmsle8.5.6
concretecms:concrete_cmsconcretecms concrete cmseq9.0

CPE	Name	Operator	Version
concretecms:concrete_cms	concretecms concrete cms	le	8.5.6
concretecms:concrete_cms	concretecms concrete cms	eq	9.0

CNA Affected

[
  {
    "product": "https://github.com/concrete5/concrete5",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Affected versions Concrete CMS (formerly concrete5) versions below 8.5.6 and 9.0.0. Fixed versions 9.0.1 and 8.5.7"
      }
    ]
  }
]