Multiple vulnerabilities in Ruby on Rails
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-22880 CVE-2021-22881 |
| CWE-ID | CWE-185 CWE-601 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Ruby on Rails Universal components / Libraries / Scripting languages |
| Vendor | Rails |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Incorrect Regular Expression
EUVDB-ID: #VU50606
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22880
CWE-ID:
CWE-185 - Incorrect Regular Expression
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect regular expression for money processing format in the PostgreSQL adapter. A remote attacker can pass specially crafted input to the application and perform a regular expression denial of service (ReDOS) attack.
Install updates from vendor's website.
Vulnerable software versionsRuby on Rails: 5.0.0 - 6.1.2
External linkshttp://github.com/rails/rails/releases/tag/v6.1.2.1
http://github.com/rails/rails/releases/tag/v6.0.3.5
http://github.com/rails/rails/releases/tag/v5.2.4.5
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.
2) Open redirect
EUVDB-ID: #VU50607
Risk: Low
CVSSv3.1: 3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22881
CWE-ID:
CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to improper sanitization of user-supplied data, when the allowed host starts with a dot. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
MitigationInstall updates from vendor's website.
Vulnerable software versionsRuby on Rails: 6.0.0 - 6.1.2
External linkshttp://github.com/rails/rails/releases/tag/v6.1.2.1
http://github.com/rails/rails/releases/tag/v6.0.3.5
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.
