Vulnerability Description
ExpressionEngine version 2.x < 2.11.8 and version 3.x < 3.5.5 create an object signing token with weak entropy. Successfully guessing the token can lead to remote code execution.
CVSS Score
7.5
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Expressionengine | Expressionengine | 2.0.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/99242Third Party AdvisoryVDB Entry
- https://docs.expressionengine.com/latest/about/changelog.html#version-3-5-5Vendor Advisory
- https://docs.expressionengine.com/v2/about/changelog.html#version-2-11-8Vendor Advisory
- https://expressionengine.com/blog/expressionengine-3.5.5-and-2.11.8-releasedVendor Advisory
- https://hackerone.com/reports/215890Permissions Required
- http://www.securityfocus.com/bid/99242Third Party AdvisoryVDB Entry
- https://docs.expressionengine.com/latest/about/changelog.html#version-3-5-5Vendor Advisory
- https://docs.expressionengine.com/v2/about/changelog.html#version-2-11-8Vendor Advisory
- https://expressionengine.com/blog/expressionengine-3.5.5-and-2.11.8-releasedVendor Advisory
- https://hackerone.com/reports/215890Permissions Required
FAQ
What is CVE-2017-0897?
CVE-2017-0897 is a vulnerability with a CVSS score of 7.5 (HIGH). ExpressionEngine version 2.x < 2.11.8 and version 3.x < 3.5.5 create an object signing token with weak entropy. Successfully guessing the token can lead to remote code execution.
How severe is CVE-2017-0897?
CVE-2017-0897 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-0897?
Check the references section above for vendor advisories and patch information. Affected products include: Expressionengine Expressionengine.