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ibmIBM05BBDE1FB03AC43275CE3464D408E5E21E63D250E7B0CF0E90D314FBD5991752
HistoryJan 28, 2022 - 4:56 p.m.

Security Bulletin: IBM Engineering Requirements Management DOORS is vulnerable to arbitrary code execution due to Apache Log4j (CVE-2021-44832, CVE-2021-45046, ) and denial of service due to Apache Log4j (CVE-2021-45105)

2022-01-2816:56:55
www.ibm.com
43

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.975 High

EPSS

Percentile

100.0%

Summary

There are Remote Attack Vulnerabilities in Apache Log4j (CVE-2021-45105, CVE-2021-45046, CVE-2021-44832) which affect the Knowledge Center Component (KCCI) which may optionally be installed by IBM Engineering Requirements Management DOORS. This fix upgrades the Knowlege Center component to a version that does not rely on or use Log4j.

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)

CVEID:CVE-2021-44832
**DESCRIPTION:**Apache Log4j could allow a remote attacker with permission to modify the logging configuration file to execute arbitrary code on the system. By constructing a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI , an attacker could exploit this vulnerability to execute remote code.
CVSS Base score: 6.6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216189 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Engineering Requirements Management DOORS 9.6.1.7-9.6.1.11, 9.7-9.7.0.1, 9.7.1, 9.7.2-9.7.2.2

Remediation/Fixes

IBM strongly recommends addressing the vulnerabilities now by taking the actions documented in this bulletin.

Note: This security bulletin supersedes: <https://www.ibm.com/support/pages/node/6527328&gt;

The Knowledge Center Component (KCCI) for a Locally installed Help Server that is (optionally) installed and configured for the following products will need to be updated:

  • IBM Engineering Requirements Management DOORS: 9.6.1.7 - 9.6.1.11
  • IBM Engineering Requirements Management DOORS: 9.7 - 9.7.0.1
  • IBM Engineering Requirements Management DOORS: 9.7.1
  • IBM Engineering Requirements Management DOORS: 9.7.2 - 9.7.2.2

Remediation/Fixes

Click the Link to download the patch. Follow the following procedure to remediate.

Procedure:

1. Download the updated IBM Engineering Requirements Management DOORS Server Windows installer
from the link identified above.
2. Unzip the file and install the server setup.exe on a temporary Windows machine.
3. Find the updated KC_CI.zip that is apart of the temporary install
- Temp Location :

C:\Program Files (x86)\IBM\Rational\DOORS\9.7.2.5\Server\ibm\Rational\DOORS\9.7\kcci_install
4. Next, update your existing server Windows kcii_install dir

- For IBM Engineering Requirements Management DOORS 9.6.*
C:\Program Files (x86)\IBM\Rational\DOORS&lt;version>\Server\ibm\Rational\DOORS\9.6\kcci_install
- For IBM Engineering Requirements Management DOORS 9.7.*
C:\Program Files (x86)\IBM\Rational\DOORS&lt;version>\Server\ibm\Rational\DOORS\9.7\kcci_install
5. Delete the old contents of the kcci_install directory
6. Copy KC_CI.zip (129 MB) version 2.0 into that directory and unzip

7. Next click on the KCCI contents link for the DOORS Help. Download the help contents zip for version 9.7.2 or higher and unzip it into the new kcci_install directory.

Additional Help

For further information on installing IBM Engineering Requirements Management DOORS on your computer, review the following information link.

Workarounds and Mitigations

None

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.975 High

EPSS

Percentile

100.0%