Multiple vulnerabilities in Red Hat AMQ Broker

1) Improper input validation

EUVDB-ID: #VU52385

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-27223

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to improper input validation within the General (Eclipse Jetty) component in Oracle REST Data Services. A remote non-authenticated attacker can exploit this vulnerability to perform service disruption.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMQ Broker: 7.8 - 7.8.1

CPE2.3

• cpe:2.3:a:red_hat:amq_broker:7.8:*:*:*:*:jboss_application_server:*:*
• cpe:2.3:a:red_hat:amq_broker:7.8.1:*:*:*:*:jboss_application_server:*:*

External links

https://access.redhat.com/errata/RHSA-2021:2689

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) Cleartext storage of sensitive information

EUVDB-ID: #VU51835

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-21290

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to insecure usage of temporary files in AbstractDiskHttpData method in Netty. The application stores sensitive information in temporary file that has insecure permissions. A local user can view application's temporary file and gain access to potentially sensitive data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMQ Broker: 7.8 - 7.8.1

CPE2.3

• cpe:2.3:a:red_hat:amq_broker:7.8:*:*:*:*:jboss_application_server:*:*
• cpe:2.3:a:red_hat:amq_broker:7.8.1:*:*:*:*:jboss_application_server:*:*

External links

https://access.redhat.com/errata/RHSA-2021:2689

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.

3) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU51836

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-2021-21295

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests in io.netty:netty-codec-http2 when converting HTTP/2 to HTTP/1 streams. A remote attacker can send a specially crafted HTTP 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

AMQ Broker: 7.8 - 7.8.1

CPE2.3

• cpe:2.3:a:red_hat:amq_broker:7.8:*:*:*:*:jboss_application_server:*:*
• cpe:2.3:a:red_hat:amq_broker:7.8.1:*:*:*:*:jboss_application_server:*:*

External links

https://access.redhat.com/errata/RHSA-2021:2689

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) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU51837

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-2021-21409

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests in io.netty:netty-codec-http2 in Netty, if the request only uses a single Http2HeaderFrame with the endStream set to to true. A remote attacker can send a specially crafted HTTP 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

AMQ Broker: 7.8 - 7.8.1

CPE2.3

• cpe:2.3:a:red_hat:amq_broker:7.8:*:*:*:*:jboss_application_server:*:*
• cpe:2.3:a:red_hat:amq_broker:7.8.1:*:*:*:*:jboss_application_server:*:*

External links

https://access.redhat.com/errata/RHSA-2021:2689

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) Information disclosure

EUVDB-ID: #VU51878

Risk: Medium

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

CVE-ID: CVE-2021-28163

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. If the ${jetty.base} directory or the ${jetty.base}/webapps directory is a symlink, the contents of the ${jetty.base}/webapps directory may be deployed as a static web application, exposing the content of the directory for download.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMQ Broker: 7.8 - 7.8.1

CPE2.3

• cpe:2.3:a:red_hat:amq_broker:7.8:*:*:*:*:jboss_application_server:*:*
• cpe:2.3:a:red_hat:amq_broker:7.8.1:*:*:*:*:jboss_application_server:*:*

External links

https://access.redhat.com/errata/RHSA-2021:2689

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) Input validation error

EUVDB-ID: #VU51877

Risk: Medium

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2021-28164

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to sensitive informatoin.

The vulnerability exists due to insufficient validation of user-supplied input when processing special characters, passed via URI. A remote attacker can use %2e or %2e%2e segments to access protected resources within the WEB-INF directory.

Example:

http://[host]/context/%2e/WEB-INF/web.xml

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMQ Broker: 7.8 - 7.8.1

CPE2.3

• cpe:2.3:a:red_hat:amq_broker:7.8:*:*:*:*:jboss_application_server:*:*
• cpe:2.3:a:red_hat:amq_broker:7.8.1:*:*:*:*:jboss_application_server:*:*

External links

https://access.redhat.com/errata/RHSA-2021:2689

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.

7) Resource exhaustion

EUVDB-ID: #VU51876

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-2021-28165

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 processing large TLS frames. A remote attacker can send specially crafted data to the server, trigger CPU high load and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMQ Broker: 7.8 - 7.8.1

CPE2.3

• cpe:2.3:a:red_hat:amq_broker:7.8:*:*:*:*:jboss_application_server:*:*
• cpe:2.3:a:red_hat:amq_broker:7.8.1:*:*:*:*:jboss_application_server:*:*

External links

https://access.redhat.com/errata/RHSA-2021:2689

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.