CVE-2021-41819
ruby: Cookie prefix spoofing in CGI::Cookie.parse
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby.
CGI::Cookie.parse en Ruby versiones hasta 2.6.8, maneja inapropiadamente los prefijos de seguridad en los nombres de las cookies. Esto también afecta a CGI gem versiones hasta 0.3.0 para Ruby.
A flaw was found in Ruby. RubyGems cgi gem could allow a remote attacker to conduct spoofing attacks caused by the mishandling of security prefixes in cookie names in the CGI::Cookie.parse function. By sending a specially-crafted request, an attacker could perform cookie prefix spoofing attacks.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-09-29 CVE Reserved
- 2022-01-01 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2024-09-16 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-565: Reliance on Cookies without Validation and Integrity Checking
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20220121-0003 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://www.ruby-lang.org/en/news/2021/11/24/cookie-prefix-spoofing-in-cgi-cookie-parse-cve-2021-41819 | 2024-08-04 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Ruby-lang Search vendor "Ruby-lang" | Cgi Search vendor "Ruby-lang" for product "Cgi" | 0.1.0 Search vendor "Ruby-lang" for product "Cgi" and version "0.1.0" | ruby |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Cgi Search vendor "Ruby-lang" for product "Cgi" | 0.2.0 Search vendor "Ruby-lang" for product "Cgi" and version "0.2.0" | ruby |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Cgi Search vendor "Ruby-lang" for product "Cgi" | 0.3.0 Search vendor "Ruby-lang" for product "Cgi" and version "0.3.0" | ruby |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | <= 2.6.8 Search vendor "Ruby-lang" for product "Ruby" and version " <= 2.6.8" | - |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 2.7.0 < 2.7.5 Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.7.0 < 2.7.5" | - |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 3.0.0 < 3.0.3 Search vendor "Ruby-lang" for product "Ruby" and version " >= 3.0.0 < 3.0.3" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Software Collections Search vendor "Redhat" for product "Software Collections" | - | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0" | - |
Affected
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| Suse Search vendor "Suse" | Linux Enterprise Search vendor "Suse" for product "Linux Enterprise" | 11.0 Search vendor "Suse" for product "Linux Enterprise" and version "11.0" | sp1 |
Affected
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| Suse Search vendor "Suse" | Linux Enterprise Search vendor "Suse" for product "Linux Enterprise" | 12.0 Search vendor "Suse" for product "Linux Enterprise" and version "12.0" | - |
Affected
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| Suse Search vendor "Suse" | Linux Enterprise Search vendor "Suse" for product "Linux Enterprise" | 15.0 Search vendor "Suse" for product "Linux Enterprise" and version "15.0" | - |
Affected
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| Opensuse Search vendor "Opensuse" | Factory Search vendor "Opensuse" for product "Factory" | - | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.2 Search vendor "Opensuse" for product "Leap" and version "15.2" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
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