CVE-2021-20376

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow an authenticated attacker to enumerate usernames due to there being an observable discrepancy in returned messages. IBM X-Force ID: 195568.

IBM Sterling File Gateway versiones 2.2.0.0 hasta 6.1.1.0, podría permitir a un atacante autenticado enumerar nombres de usuario debido a que se presenta una discrepancia observable en los mensajes devueltos. IBM X-Force ID: 195568

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-10-07 CVE Published
2023-04-30 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-203: Observable Discrepancy

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://www.ibm.com/support/pages/node/6496789	2022-05-03

URL	Date	SRC
https://exchange.xforce.ibmcloud.com/vulnerabilities/195568	2022-05-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ibm Search vendor "Ibm"		Sterling B2b Integrator Search vendor "Ibm" for product "Sterling B2b Integrator"				>= 2.2.0.0 <= 5.2.6.5_3 Search vendor "Ibm" for product "Sterling B2b Integrator" and version " >= 2.2.0.0 <= 5.2.6.5_3"		-		Affected
Ibm Search vendor "Ibm"		Sterling B2b Integrator Search vendor "Ibm" for product "Sterling B2b Integrator"				>= 6.0.0.0 <= 6.0.3.4 Search vendor "Ibm" for product "Sterling B2b Integrator" and version " >= 6.0.0.0 <= 6.0.3.4"		-		Affected
Ibm Search vendor "Ibm"		Sterling B2b Integrator Search vendor "Ibm" for product "Sterling B2b Integrator"				>= 6.1.0.0 <= 6.1.0.1 Search vendor "Ibm" for product "Sterling B2b Integrator" and version " >= 6.1.0.0 <= 6.1.0.1"		-		Affected