Multiple vulnerabilities in IBM Rational Build Forge

1) Improper input validation

EUVDB-ID: #VU55057

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-2388

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The vulnerability exists due to improper input validation within the Hotspot component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to execute arbitrary code.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Rational Build Forge: 8.0.0.0 - 8.0.0.20

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-rational-build-forge-8-0-x-is-affected-by-java-version-used-in-it-cve-2021-2388-cve-2021-2369-cve-2021-2432/
https://www.ibm.com/support/pages/node/6541332

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.

2) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU55058

Risk: Low

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

CVE-ID: CVE-2021-2369

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in JAR validation implementation. A remote attacker can modify the signed JAR file in a way it will be considered as signed.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Rational Build Forge: 8.0.0.0 - 8.0.0.20

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-rational-build-forge-8-0-x-is-affected-by-java-version-used-in-it-cve-2021-2388-cve-2021-2369-cve-2021-2432/
https://www.ibm.com/support/pages/node/6541332

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 input validation

EUVDB-ID: #VU55059

Risk: Low

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

CVE-ID: CVE-2021-2432

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The vulnerability exists due to improper input validation within the JNDI component in Java SE. A remote non-authenticated attacker can exploit this vulnerability to perform service disruption.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Rational Build Forge: 8.0.0.0 - 8.0.0.20

CPE2.3

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-rational-build-forge-8-0-x-is-affected-by-java-version-used-in-it-cve-2021-2388-cve-2021-2369-cve-2021-2432/
https://www.ibm.com/support/pages/node/6541332

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.

Risk	Medium
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2021-2388 CVE-2021-2369 CVE-2021-2432
CWE-ID	CWE-20 CWE-347
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	IBM Rational Build Forge Server applications / Other server solutions
Vendor	IBM Corporation