Multiple vulnerabilities in Multicluster Engine for Kubernetes 2.3

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU72886

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-41721

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP/2 request smuggling attacks.

The vulnerability exists due to improper validation of HTTP/2 requests when using MaxBytesHandler. A remote attacker can send a specially crafted HTTP/2 request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

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) Cross-site scripting

EUVDB-ID: #VU75790

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-24539

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 user-supplied data when handling angle brackets in CSS context. A remote attacker can inject 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 updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

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) Code Injection

EUVDB-ID: #VU75791

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-24540

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation when processing whitespace characters. A remote attacker can send a specially crafted request and execute arbitrary JavaScript code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

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) Prototype pollution

EUVDB-ID: #VU80323

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2023-26136

CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

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) Cross-site scripting

EUVDB-ID: #VU75792

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-29400

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 user-supplied data when processing HTML attributes. A remote attacker can trick the victim to follow a specially crafted link 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 updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

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) Incorrect authorization

EUVDB-ID: #VU79878

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-3899

CWE-ID: CWE-863 - Incorrect Authorization

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect authorization caused by D-Bus interface com.redhat.RHSM1 that exposes a significant number of methods to all users. A local user can abuse the com.redhat.RHSM1.Config.SetAll() method to change the state of the registration and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

7) Buffer overflow

EUVDB-ID: #VU75141

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-29491

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing malformed data in a terminfo database file. A local user can trigger memory corruption and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

8) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU75432

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-30630

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions when executing the command with the "--dump-bin" option. A local user can overwrite arbitrary files on the system and escalate privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

9) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU78490

Risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-34969

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an error in the dbus-daemon when sending a reply message from the "bus driver". If a local privileged user (e.g. root) is using the org.freedesktop.DBus.Monitoring interface to monitor message bus traffic, another unprivileged user with the ability to connect to the same dbus-daemon can force the service to send an unreplyable message and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Multicluster Engine for Kubernetes: 2.3.0 - 2.3.1

CPE2.3

• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:multicluster_engine_for_kubernetes:2.3.1:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2023:5421

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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