Multiple vulnerabilities in IBM Cloud Pak for Integration

Published: 2022-08-18 | Updated: 2022-10-19

Risk	Medium
Patch available	YES
Number of vulnerabilities	7
CVE-ID	CVE-2021-33196 CVE-2021-34558 CVE-2021-29923 CVE-2021-36221 CVE-2021-33197 CVE-2021-33198 CVE-2021-33195
CWE-ID	CWE-400 CWE-295 CWE-20 CWE-362 CWE-862 CWE-399 CWE-79
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	Asset Repository in IBM Cloud Pak for Integration (CP4I) Other software / Other software solutions Platform Navigator in IBM Cloud Pak for Integration (CP4I) Other software / Other software solutions
Vendor	IBM Corporation

Security Bulletin

This security bulletin contains information about 7 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU54521

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33196

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 consumption of internal resources when parsing archives. A remote attacker can pass a specially crafted .zip file to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asset Repository in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

Platform Navigator in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

External links

http://www.ibm.com/support/pages/node/6501839

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 Certificate Validation

EUVDB-ID: #VU55665

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-2021-34558

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: Yes

Description

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

The vulnerability exists due to improper certificate verification in crypto/tls package in Go when processing X.509 certificates. The application does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asset Repository in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

Platform Navigator in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

External links

http://www.ibm.com/support/pages/node/6501839

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.

3) Input validation error

EUVDB-ID: #VU56829

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29923

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in net.ParseIP and net.ParseCIDR, as the Go interpreter does not properly consider extraneous zero characters at the beginning of an IP address octet. A remote attacker can bypass access control that is based on IP addresses, because of unexpected octal interpretation.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asset Repository in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

Platform Navigator in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

External links

http://www.ibm.com/support/pages/node/6501839

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) Race condition

EUVDB-ID: #VU55668

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-36221

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in net/http/httputil ReverseProxy when handling ErrAbortHandler events. A remote attacker can trigger a race condition and crash the ReverseProxy.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asset Repository in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

Platform Navigator in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

External links

http://www.ibm.com/support/pages/node/6501839

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.

5) Missing Authorization

EUVDB-ID: #VU56023

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33197

CWE-ID: CWE-862 - Missing Authorization

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authorization process.

The vulnerability exists due to an error in some configurations of ReverseProxy (from net/http/httputil). A remote attacker can drop arbitrary headers and bypass authorization process.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asset Repository in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

Platform Navigator in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

External links

http://www.ibm.com/support/pages/node/6501839

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.

6) Resource management error

EUVDB-ID: #VU56024

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33198

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources within the application when handling a large exponent to the math/big.Rat SetString or UnmarshalText method. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asset Repository in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

Platform Navigator in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

External links

http://www.ibm.com/support/pages/node/6501839

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.

7) Cross-site scripting

EUVDB-ID: #VU56022

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33195

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of data passed from DNS lookups. A remote attacker can send a specially crafted DNS reqponse and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asset Repository in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

Platform Navigator in IBM Cloud Pak for Integration (CP4I): 2020.4.1 - 2021.2.1

External links

http://www.ibm.com/support/pages/node/6501839

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.