CVE-2021-20556

IBM Cognos Controller information disclosure

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

IBM Cognos Controller 10.4.1, 10.4.2 y 11.0.0 podrían permitir que un usuario remoto enumere nombres de usuarios debido a mensajes de error diferenciadores en nombres de usuarios existentes. ID de IBM X-Force: 199181.

*Credits: N/A

CVSS Scores

IBM Corporationv3.1 5.3

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2024-05-03 CVE Published
2024-05-04 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-204: Observable Response Discrepancy

CAPEC

References (2)

URL	Tag	Source
https://exchange.xforce.ibmcloud.com/vulnerabilities/199181	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.ibm.com/support/pages/node/7149876	2024-05-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
-		-				-		-		-