Multiple vulnerabilities in Undertow
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2024-6162 CVE-2024-27316 CVE-2023-5685 |
| CWE-ID | CWE-20 CWE-400 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
Undertow Server applications / Web servers |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU93102
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-2024-6162
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 insufficient validation of user-supplied input when handling url-encoded request path information. A remote attacker can send a specially crafted HTTP request to the application and perform a denial of service (DoS) attack.
MitigationUndertow: 2.0.0.Alpha1 - 2.3.13
CPE2.3- cpe:2.3:a:red_hat:undertow:2.0.0.Alpha1:*:*:*:*:wildfly_core:*:*
- cpe:2.3:a:red_hat:undertow:2.0.0.Alpha2:*:*:*:*:wildfly_core:*:*
- cpe:2.3:a:red_hat:undertow:2.0.0:*:*:*:*:wildfly_core:*:*
https://access.redhat.com/security/cve/CVE-2024-6162
https://bugzilla.redhat.com/show_bug.cgi?id=2293069
https://github.com/undertow-io/undertow/releases/tag/2.3.14.Final
https://github.com/undertow-io/undertow/releases/tag/2.2.33.Final
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: #VU88153
Risk: Medium
CVSSv4.0: 7.7 [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:P/U:Green]
CVE-ID: CVE-2024-27316
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: Yes
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 when handling HTTP/2 requests. A remote attacker can send specially crafted HTTP/2 requests to the server and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsUndertow: 2.0.0.Alpha1 - 2.3.13
CPE2.3- cpe:2.3:a:red_hat:undertow:2.0.0.Alpha1:*:*:*:*:wildfly_core:*:*
- cpe:2.3:a:red_hat:undertow:2.0.0.Alpha2:*:*:*:*:wildfly_core:*:*
- cpe:2.3:a:red_hat:undertow:2.0.0:*:*:*:*:wildfly_core:*:*
https://github.com/undertow-io/undertow/releases/tag/2.2.33.Final
https://github.com/undertow-io/undertow/releases/tag/2.3.14.Final
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. However, proof of concept for this vulnerability is available.
3) Resource exhaustion
EUVDB-ID: #VU93103
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-2023-5685
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 NotifierState, when the chain of notifier states becomes problematically large. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsUndertow: 2.0.0.Alpha1 - 2.3.13
CPE2.3- cpe:2.3:a:red_hat:undertow:2.0.0.Alpha1:*:*:*:*:wildfly_core:*:*
- cpe:2.3:a:red_hat:undertow:2.0.0.Alpha2:*:*:*:*:wildfly_core:*:*
- cpe:2.3:a:red_hat:undertow:2.0.0:*:*:*:*:wildfly_core:*:*
https://github.com/undertow-io/undertow/releases/tag/2.2.33.Final
https://github.com/undertow-io/undertow/releases/tag/2.3.14.Final
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.
