Multiple vulnerabilities in IBM CICS Transaction Gateway



Published: 2022-12-09
Risk Medium
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2022-42004
CVE-2022-42003
CVE-2020-36518
CVE-2020-25649
CWE-ID CWE-400
CWE-502
CWE-787
CWE-611
Exploitation vector Network
Public exploit N/A
Vulnerable software
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CICS Transaction Gateway
Server applications / Other server solutions

Vendor IBM Corporation

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU68832

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-42004

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control usage of deeply nested arrays in BeanDeserializer._deserializeFromArray. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

CICS Transaction Gateway: All versions


CPE2.3 External links

http://www.ibm.com/support/pages/node/6846205

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Deserialization of Untrusted Data

EUVDB-ID: #VU68635

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-42003

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

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

The vulnerability exists due to insecure input validation when processing serialized data when the UNWRAP_SINGLE_VALUE_ARRAYS feature is enabled. A remote attacker can pass specially crafted data to the application and cause a denial of service condition on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

CICS Transaction Gateway: All versions


CPE2.3 External links

http://www.ibm.com/support/pages/node/6846205

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Out-of-bounds write

EUVDB-ID: #VU61799

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-36518

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can trigger out-of-bounds write and cause a denial of service condition on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

CICS Transaction Gateway: All versions


CPE2.3 External links

http://www.ibm.com/support/pages/node/6846205

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

4) XML External Entity injection

EUVDB-ID: #VU48979

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-25649

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to modify information on the system.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and modify information on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

CICS Transaction Gateway: All versions


CPE2.3 External links

http://www.ibm.com/support/pages/node/6846205

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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