Risk | High |
Patch available | YES |
Number of vulnerabilities | 4 |
CVE-ID | CVE-2021-4104 CVE-2021-45046 CVE-2021-45105 CVE-2021-44832 |
CWE-ID | CWE-502 CWE-94 CWE-835 |
Exploitation vector | Network |
Public exploit |
Vulnerability #2 is being exploited in the wild. Public exploit code for vulnerability #3 is available. |
Vulnerable software Subscribe |
IBM Security Guardium Key Lifecycle Manager (GKLM) Server applications / Other server solutions |
Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
EUVDB-ID: #VU58977
Risk: Medium
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-4104
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in JMSAppender, when the attacker has write access to the Log4j configuration. The attacker can provide TopicBindingName and TopicConnectionFactoryBindingName configurations causing JMSAppender to perform JNDI requests that result in remote code execution.
Note this issue only affects Log4j 1.2 when specifically configured to
use JMSAppender, which is not the default.
Install update from vendor's website.
Vulnerable software versionsIBM Security Guardium Key Lifecycle Manager (GKLM): 2.7 - 4.1.1 FP2
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-apache-log4j-affect-the-ibm-websphere-application-server-and-ibm-security-guardium-key-lifecycle-manager-cve-2021-4104-cve-2021-45046-cve-2021-45105/
http://www.ibm.com/support/pages/node/6539408
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU58976
Risk: High
CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2021-45046
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to compromise the affected system.
The
vulnerability exists due to incomplete patch in Apache Log4j 2.15.0 for
a code injection vulnerability #VU58816 (CVE-2021-44228) in certain
non-default configurations. A remote attacker with control over Thread
Context Map (MDC) input data when the logging configuration uses a
non-default Pattern Layout with either a Context Lookup (for example,
$${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) can
pass malicious data using a JNDI Lookup pattern and perform a denial of
service (DoS) attack, exfiltrate data or execute arbitrary code.
Later discovery demonstrates a remote code execution on macOS but no other tested environments.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM Security Guardium Key Lifecycle Manager (GKLM): 2.7 - 4.1.1 FP2
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-apache-log4j-affect-the-ibm-websphere-application-server-and-ibm-security-guardium-key-lifecycle-manager-cve-2021-4104-cve-2021-45046-cve-2021-45105/
http://www.ibm.com/support/pages/node/6539408
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
EUVDB-ID: #VU59051
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-45105
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the StrSubstitutor class. A remote attacker can pass specially crafted input to the application, consume all available system resources and cause denial of service conditions.
Payload example: ${${::-${::-$${::-j}}}}
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM Security Guardium Key Lifecycle Manager (GKLM): 2.7 - 4.1.1 FP2
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-apache-log4j-affect-the-ibm-websphere-application-server-and-ibm-security-guardium-key-lifecycle-manager-cve-2021-4104-cve-2021-45046-cve-2021-45105/
http://www.ibm.com/support/pages/node/6539408
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
EUVDB-ID: #VU59098
Risk: Medium
CVSSv3.1: 5.8 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-44832
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote user with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI which can execute remote code.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM Security Guardium Key Lifecycle Manager (GKLM): 2.7 - 4.1.1 FP2
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-apache-log4j-affect-the-ibm-websphere-application-server-and-ibm-security-guardium-key-lifecycle-manager-cve-2021-4104-cve-2021-45046-cve-2021-45105/
http://www.ibm.com/support/pages/node/6539408
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.