Vulnerability Description
Jenzabar JICS (aka Internet Campus Solution) before 9.0.1 Patch 3, 9.1 before 9.1.2 Patch 2, and 9.2 before 9.2.2 Patch 8 has session cookies that are a deterministic function of the username. There is a hard-coded password to supply a PBKDF feeding into AES to encrypt a username and base64 encode it to a client-side cookie for persistent session authentication. By knowing the key and algorithm, an attacker can select any username, encrypt it, base64 encode it, and save it in their browser with the correct JICSLoginCookie cookie format to impersonate any real user in the JICS database without the need for authenticating (or verifying with MFA if implemented).
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jenzabar | Internet Campus Solution | <= 9.0.1 |
Related Weaknesses (CWE)
References
- https://medium.com/%40mdavis332/higher-ed-erp-portal-vulnerability-auth-bypass-t
- https://medium.com/%40mdavis332/higher-ed-erp-portal-vulnerability-auth-bypass-t
FAQ
What is CVE-2020-8434?
CVE-2020-8434 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Jenzabar JICS (aka Internet Campus Solution) before 9.0.1 Patch 3, 9.1 before 9.1.2 Patch 2, and 9.2 before 9.2.2 Patch 8 has session cookies that are a deterministic function of the username. There i...
How severe is CVE-2020-8434?
CVE-2020-8434 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-8434?
Check the references section above for vendor advisories and patch information. Affected products include: Jenzabar Internet Campus Solution.