Multiple vulnerabilities in Jenkins Claim plugin
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-21619 CVE-2021-21620 |
| CWE-ID | CWE-79 CWE-352 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Claim Web applications / Modules and components for CMS |
| Vendor | Jenkins |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Cross-site scripting
EUVDB-ID: #VU50947
Risk: Low
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-21619
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the user display name. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability..
Vulnerable software versionsClaim: 1.0 - 2.18.1
External linkshttp://www.openwall.com/lists/oss-security/2021/02/24/3
http://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20(1)
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Cross-site request forgery
EUVDB-ID: #VU50948
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-21620
CWE-ID:
CWE-352 - Cross-Site Request Forgery (CSRF)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability..
Vulnerable software versionsClaim: 1.0 - 2.18.1
External linkshttp://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20(2)
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.
