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HistoryJan 31, 2023 - 2:51 p.m.

Security Bulletin: Multiple vulnerabilities affect IBM Sterling External Authentication Server

2023-01-3114:51:18
www.ibm.com
5

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

42.4%

Summary

Multiple vulnerabilities affect IBM Sterling External Authentication Server. These vulnerabilities have been addressed in the latest iFix.

Vulnerability Details

CVEID:CVE-2021-33502
**DESCRIPTION:**Node.js normalize-url module is vulnerable to a denial of service, caused by a ReDoS (regular expression denial of service) flaw in the data URLs. By using a specially-crafted regex input, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202299 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2022-35720
**DESCRIPTION:**IBM Sterling External Authentication Server uses weaker than expected cryptographic algorithms during installation that could allow a local attacker to decrypt sensitive information.
CVSS Base score: 2.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/231373 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

**IBM X-Force ID:**232247
**DESCRIPTION:**axios could allow a remote attacker to obtain sensitive information, caused by the leak of sensitive information in the cookie header. By persuading a victim to connect a specially-crafted Web site, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/232247 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Sterling External Authentication Server 6.1.0

Remediation/Fixes

Product VRMF Remediation
IBM Sterling External Authentication Server 6.1.0 6.1.0.0 iFix02 on Fix Central

Workarounds and Mitigations

None

CPENameOperatorVersion
ibm sterling secure proxyeq6.1.0

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

42.4%