CVE-2021-42237

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
Sitecore XP 7.5 Initial Release to Sitecore XP 8.2 Update-7 is vulnerable to an insecure deserialization attack where it is possible to achieve remote command execution on the machine. No authentication or special configuration is required to exploit this vulnerability.
Overview
  • CVE ID
  • CVE-2021-42237
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-11-05T10:15:08
  • Last Modified Date
  • 2021-12-03T21:17:16
Weakness Enumerations
CWE URL
CWE-502 http://cwe.mitre.org/data/definitions/502.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:sitecore:experience_platform:7.5:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:7.5:update1:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:7.5:update2:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:update1:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:update2:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:update3:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:update4:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:update5:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:update6:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.0:update7:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.1:update1:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.1:update2:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.1:update3:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:update1:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:update2:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:update3:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:update4:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:update5:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:update6:*:*:*:*:*:* 1 OR
cpe:2.3:a:sitecore:experience_platform:8.2:update7:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
http://sitecore.com Vendor Advisory
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1000776 Vendor Advisory
https://blog.assetnote.io/2021/11/02/sitecore-rce/ Exploit Third Party Advisory
http://packetstormsecurity.com/files/164988/Sitecore-Experience-Platform-XP-Remote-Code-Execution.html Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-42237
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42237
History
Created Old Value New Value Data Type Notes
2022-05-10 06:43:02 Added to TrackCVE
2022-12-05 13:54:55 2021-11-05T10:15Z 2021-11-05T10:15:08 CVE Published Date updated
2022-12-05 13:54:55 2021-12-03T21:17:16 CVE Modified Date updated
2022-12-05 13:54:55 Analyzed Vulnerability Status updated