Apereo CAS 7.3.0 < 8.0.0-RC6 - AES-GCM Nonce Reuse Information Disclosure
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| apereo | cas | unaffected |
|
No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Apereo | Cas |
|
||||||||
| Apereo | Central Authentication Service |
|
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.548% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apereo cas
|
|
| Vendors & Products |
Apereo cas
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Apereo CAS 7.3.0 before 8.0.0-RC6 contains a cryptographic vulnerability that allows remote unauthenticated attackers to recover plaintext conversation state by exploiting AES-GCM initialization vector reuse across the server lifetime. Attackers can collect multiple client-side webflow execution tokens from the unauthenticated login page and perform known-plaintext analysis to decrypt the webflow conversation state due to keystream reuse caused by a fixed all-zero IV paired with the same encryption key. | |
| Title | Apereo CAS 7.3.0 < 8.0.0-RC6 - AES-GCM Nonce Reuse Information Disclosure | |
| First Time appeared |
Apereo
Apereo central Authentication Service |
|
| Weaknesses | CWE-323 | |
| CPEs | cpe:2.3:a:apereo:central_authentication_service:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Apereo
Apereo central Authentication Service |
|
| References |
|
|
| Metrics |
cvssV3_1
|