Security Bulletin: Apache Log4j vulnerabilities impact IBM Sterling Connect:Direct for Microsoft Windows (CVE-2021-45105, CVE-2021-45046)

Summary

There are vulnerabilities in Apache Log4j used by IBM Sterling Connect:Direct for Microsoft Windows. IBM Sterling Connect:Direct for Microsoft Windows has addressed the applicable CVEs. The fix includes Apache Log4j 2.17.

Vulnerability Details

CVEID:CVE-2021-45105
**DESCRIPTION:**Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process. Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 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-2021-45046
**DESCRIPTION:**Apache Log4j could result in remote code execution, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. When the logging configuration uses a non-default Pattern Layout with a Context Lookup, an attacker with control over Thread Context Map (MDC) input data can craft malicious input data using a JNDI Lookup pattern to leak sensitive information and remote code execution in some environments and local code execution in all environments.
CVSS Base score: 9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

4.8.0.3 - 4.8.0.3_iFix038

IBM Sterling Connect:Direct for Microsoft Windows|

6.0.0.3 - 6.0.0.4_iFix044

IBM Sterling Connect:Direct for Microsoft Windows|

6.1.0.1 - 6.1.0.2_iFix031

IBM Sterling Connect:Direct for Microsoft Windows|

6.2.0.0 - 6.2.0.2_iFix010

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading.

4.8.0.3 - 4.8.0.3_iFix038

| IT39414,IT39464 | Apply 4.8.0.3_iFix039, available on Fix Central
IBM Sterling Connect:Direct for Microsoft Windows|

6.0.0.3 - 6.0.0.4_iFix044

| IT39414,IT39464 | Apply 6.0.0.4_iFix045, available on Fix Central
IBM Sterling Connect:Direct for Microsoft Windows|

6.1.0.1 - 6.1.0.2_iFix031

| IT39414,IT39464 | Apply 6.1.0.2_iFix032, available on Fix Central
IBM Sterling Connect:Direct for Microsoft Windows|

6.2.0.0 - 6.2.0.2_iFix010

| IT39414,IT39464 | Apply 6.2.0.2_iFix011, available on Fix Central

For unsupported versions IBM recommends upgrading to a fixed, supported version of the product.

Workarounds and Mitigations

None