Multiple vulnerabilities in Jenkins Amazon EC2 plugin
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2020-2188 CVE-2020-2187 CVE-2020-2186 CVE-2020-2185 |
| CWE-ID | CWE-285 CWE-300 CWE-352 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Amazon EC2 Web applications / Modules and components for CMS |
| Vendor | Jenkins |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Improper Authorization
EUVDB-ID: #VU27614
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-2188
CWE-ID:
CWE-285 - Improper Authorization
Exploit availability: No
DescriptionThe vulnerability allows a remote user to bypass authorization checks.
The vulnerability exists due to the affected plugin performs improper permission checks when providing a list of applicable credentials IDs to allow users configuring the plugin to select the one to use. A remote authenticated attacker with Overall/Read permission can get a list of valid credentials IDs.
MitigationInstall updates from vendor's website.
Vulnerable software versionsAmazon EC2: 1.0 - 1.50.1
External linkshttp://www.openwall.com/lists/oss-security/2020/05/06/3
http://jenkins.io/security/advisory/2020-05-06/#SECURITY-1844
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) Man-in-the-Middle (MitM) attack
EUVDB-ID: #VU27613
Risk: Medium
CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-2187
CWE-ID:
CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to the affected plugin unconditionally accepts self-signed HTTPS certificates and does not perform hostname validation when connecting to Windows agents. A remote attacker can perform a man-in-the-middle attack and intercept these connections to build agents.
MitigationInstall updates from vendor's website.
Vulnerable software versionsAmazon EC2: 1.0 - 1.50.1
External linkshttp://www.openwall.com/lists/oss-security/2020/05/06/3
http://jenkins.io/security/advisory/2020-05-06/#SECURITY-1528
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.
3) Cross-site request forgery
EUVDB-ID: #VU27612
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-2020-2186
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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsAmazon EC2: 1.0 - 1.50.1
External linkshttp://www.openwall.com/lists/oss-security/2020/05/06/3
http://jenkins.io/security/advisory/2020-05-06/#SECURITY-1408
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.
4) Man-in-the-Middle (MitM) attack
EUVDB-ID: #VU27611
Risk: Medium
CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-2185
CWE-ID:
CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to the affected plugin does not use SSH host key validation when connecting to agents. A remote attacker can perform a man-in-the-middle attack and intercept these connections to build agents.
MitigationInstall updates from vendor's website.
Vulnerable software versionsAmazon EC2: 1.0 - 1.50.1
External linkshttp://www.openwall.com/lists/oss-security/2020/05/06/3
http://jenkins.io/security/advisory/2020-05-06/#SECURITY-381
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.
