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 achi
Affects Sitecore XP 7.5 Initial Release through Sitecore XP 8.2 Update-7. CVSS scores it 9.8 (critical). No vendor rating or fixed version is listed in the checked facts.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Sitecore Experience Platform (XP) releases from 7.5 Initial Release through 8.2 Update-7 are affected. An attacker can exploit an insecure deserialization flaw without logging in or any special setup to run arbitrary commands on the server, giving them full control of the affected machine.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- n/a n/a
Version range not reported
References 3
support.sitecore.com
blog.assetnote.io
packetstormsecurity.com
Questions about CVE-2021-42237
What does this mean?
The bug is an insecure deserialization flaw that can lead to remote code execution on the affected Sitecore server.Source: slcyber.io
Am I affected, and how do I check?
The affected range is Sitecore XP 7.5 Initial Release through Sitecore XP 8.2 Update-7. Compare your installed Sitecore XP version against that range.Source: slcyber.io
What should I do about it?
The checked facts do not name a fixed version or an upgrade target. Check the Sitecore advisory for the fixed release.Source: slcyber.io
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-03-25, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The checked facts do not list a workaround. Check the Sitecore advisory for mitigation steps while no fix is available.Source: slcyber.io