Vulnerability in N/a
CVE-2021-42237
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…
EPSS: 0.944 (100.0th percentile) — read the EPSS interpretation.
Affected products
- N/a — versions n/a
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- sitecore.com (x_refsource_MISC)
- support.sitecore.com/kb (x_refsource_MISC)
- blog.assetnote.io/2021/11/02/sitecore-rce/ (x_refsource_MISC)
- packetstormsecurity.com/files/164988/Sitecore-Experience-Platform-XP-Remote-Cod… (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-42237?
- CVE-2021-42237 is a vulnerability in N/a. Published 2021-11-05.
- Is CVE-2021-42237 known to be exploited?
- Yes. CVE-2021-42237 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 21 public proof-of-concept repositories are indexed.