Multiple vulnerabilities in Red Hat JBoss Web Server
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-22696 CVE-2021-30468 CVE-2022-23181 |
| CWE-ID | CWE-20 CWE-400 CWE-264 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
JBoss Web Server Server applications / Web servers |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU51939
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-2021-22696
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper validation of "request_uri" parameter by the OAuth 2 authorization service. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
JBoss Web Server: 5.0.0 - 5.6.2
CPE2.3- cpe:2.3:a:red_hat:jboss_web_server:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:jboss_web_server:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:jboss_web_server:5.0.2:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2022:7273
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Resource exhaustion
EUVDB-ID: #VU56019
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-2021-30468
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe 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 in the JsonMapObjectReaderWriter. A remote attacker can trigger resource exhaustion by submitting a malformed JSON to a web service and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
JBoss Web Server: 5.0.0 - 5.6.2
CPE2.3- cpe:2.3:a:red_hat:jboss_web_server:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:jboss_web_server:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:jboss_web_server:5.0.2:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2022:7273
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Security restrictions bypass
EUVDB-ID: #VU60079
Risk: Low
CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-23181
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a time of check, time of use flaw when configured to persist sessions using the FileStore. A local user can perform certain actions which lead to security restrictions bypass and privilege escalation (code execution with Tomcat process privileges).
MitigationInstall updates from vendor's website.
JBoss Web Server: 5.0.0 - 5.6.2
CPE2.3- cpe:2.3:a:red_hat:jboss_web_server:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:jboss_web_server:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:jboss_web_server:5.0.2:*:*:*:*:*:*:*
https://access.redhat.com/errata/RHSA-2022:7273
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.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
