Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2020-13933 CVE-2020-17510 |
CWE-ID | CWE-287 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system libshiro-java (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU45757
Risk: Medium
CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-13933
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests. A remote attacker can send a specially crafted HTTP request, bypass authentication process and gain unauthorized access to the application.
MitigationUpdate the affected package shiro to the latest version.
Vulnerable software versionsUbuntu: 18.04 - 20.04
libshiro-java (Ubuntu package): before Ubuntu Pro
External linkshttp://ubuntu.com/security/notices/USN-6352-1
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.
EUVDB-ID: #VU48197
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-17510
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when using Apache Shiro with Spring. A remote attacker can send a specially crfated HTTP request, bypass authentication process and gain unauthorized access to the application.
MitigationUpdate the affected package shiro to the latest version.
Vulnerable software versionsUbuntu: 18.04 - 20.04
libshiro-java (Ubuntu package): before Ubuntu Pro
External linkshttp://ubuntu.com/security/notices/USN-6352-1
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.