Multiple vulnerabilities in IBM MaaS360 Cloud Extender Agent, Mobile Enterprise Gateway and VPN Module

1) Input validation error

EUVDB-ID: #VU63976

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-22060

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to modify existing log records.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and modify existing log records.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM MaaS360 Cloud Extender Agent: before 2.106.500.011

IBM MaaS360 VPN Module: before 2.106.500

IBM MaaS360 Mobile Enterprise Gateway: before 2.106.500

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-maas360-cloud-extender-agent-mobile-enterprise-gateway-and-vpn-module-have-multiple-vulnerabilities-cve-2021-22060-cve-2022-22950-cve-2022-0547-cve-2022-0778-cve-2022-2296/
https://www.ibm.com/support/pages/node/6592807

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Incorrect Regular Expression

EUVDB-ID: #VU61760

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-22950

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due improper input validation when processing SpEL expressions. A remote attacker can send a specially crafted HTTP request to the affected application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM MaaS360 Cloud Extender Agent: before 2.106.500.011

IBM MaaS360 VPN Module: before 2.106.500

IBM MaaS360 Mobile Enterprise Gateway: before 2.106.500

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-maas360-cloud-extender-agent-mobile-enterprise-gateway-and-vpn-module-have-multiple-vulnerabilities-cve-2021-22060-cve-2022-22950-cve-2022-0547-cve-2022-0778-cve-2022-2296/
https://www.ibm.com/support/pages/node/6592807

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.

3) Improper Authentication

EUVDB-ID: #VU61608

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-0547

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error when processing authentication requests in external authentication plug-ins when more than one of them makes use of deferred authentication replies. A remote attacker can bypass authentication process and gain unauthorized access to the network with only partially correct credentials.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM MaaS360 Cloud Extender Agent: before 2.106.500.011

IBM MaaS360 VPN Module: before 2.106.500

IBM MaaS360 Mobile Enterprise Gateway: before 2.106.500

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-maas360-cloud-extender-agent-mobile-enterprise-gateway-and-vpn-module-have-multiple-vulnerabilities-cve-2021-22060-cve-2022-22950-cve-2022-0547-cve-2022-0778-cve-2022-2296/
https://www.ibm.com/support/pages/node/6592807

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.

4) Infinite loop

EUVDB-ID: #VU61391

Risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-0778

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the BN_mod_sqrt() function when processing an ASN.1 certificate that contains elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. A remote attacker can supply a specially crafted certificate to the TLS server or client, consume all available system resources and cause denial of service conditions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM MaaS360 Cloud Extender Agent: before 2.106.500.011

IBM MaaS360 VPN Module: before 2.106.500

IBM MaaS360 Mobile Enterprise Gateway: before 2.106.500

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-maas360-cloud-extender-agent-mobile-enterprise-gateway-and-vpn-module-have-multiple-vulnerabilities-cve-2021-22060-cve-2022-22950-cve-2022-0547-cve-2022-0778-cve-2022-2296/
https://www.ibm.com/support/pages/node/6592807

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.

5) Code Injection

EUVDB-ID: #VU61756

Risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2022-22965

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. A remote attacker can send a specially crafted HTTP request to the affected application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

This vulnerability was dubbed "Spring4Shell".

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM MaaS360 Cloud Extender Agent: before 2.106.500.011

IBM MaaS360 VPN Module: before 2.106.500

IBM MaaS360 Mobile Enterprise Gateway: before 2.106.500

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-maas360-cloud-extender-agent-mobile-enterprise-gateway-and-vpn-module-have-multiple-vulnerabilities-cve-2021-22060-cve-2022-22950-cve-2022-0547-cve-2022-0778-cve-2022-2296/
https://www.ibm.com/support/pages/node/6592807

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.

Risk	Critical
Patch available	YES
Number of vulnerabilities	5
CVE-ID	CVE-2021-22060 CVE-2022-22950 CVE-2022-0547 CVE-2022-0778 CVE-2022-22965
CWE-ID	CWE-20 CWE-185 CWE-287 CWE-835 CWE-94
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #4 is available. Vulnerability #5 is being exploited in the wild.
Vulnerable software	IBM MaaS360 Cloud Extender Agent Server applications / Other server solutions IBM MaaS360 Mobile Enterprise Gateway Server applications / Other server solutions IBM MaaS360 VPN Module Server applications / Remote access servers, VPN
Vendor	IBM Corporation