CVE-2021-20556
EUVD-2021-797403.05.2024, 18:15
IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 could allow a remote user to enumerate usernames due to differentiating error messages on existing usernames. IBM X-Force ID: 199181.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| ibm | cognos_controller | 10.4.1 |
| ibm | cognos_controller | 10.4.2 |
| ibm | cognos_controller | 11.0.0 |
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= Vulnerable software versions
Common Weakness Enumeration
- CWE-204 - Observable Response DiscrepancyThe product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.
- CWE-203 - Observable DiscrepancyThe product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.