Multiple vulnerabilities in Apache Tomcat
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2018-8034 CVE-2018-8037 |
| CWE-ID | CWE-264 CWE-200 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Apache Tomcat Server applications / Web servers |
| Vendor | Apache Foundation |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Security restrictions bypass
EUVDB-ID: #VU13992
Risk: Low
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-8034
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists due to host name verification when using TLS with the WebSocket client was missing. A remote unauthenticated attacker can bypass security restrictions when using TLS.
MitigationThe vulnerability is addressed in the versions 7.0.90, 9.0.10.
Vulnerable software versionsApache Tomcat: 7.0.25 - 9.0.9
External linkshttp://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.90
http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.10
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) Information disclosure
EUVDB-ID: #VU13993
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-8037
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The vulnerability exists due to improper handling of connection closures by the non-blocking I/O (NIO) and NIO2 connectors. A remote unauthenticated attacker can send a specially crafted request that submits malicious input, trigger bug in the tracking of connection closures, reuse user sessions in a new connection and access arbitrary data.
MitigationUpdate to version 9.0.10.
Vulnerable software versionsApache Tomcat: 9.0.0-M9 - 9.0.9
External linkshttp://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.10
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.
