CVE-2021-28963
Ubuntu Security Notice USN-4925-1
Severity Score
5.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Shibboleth Service Provider before 3.2.1 allows content injection because template generation uses attacker-controlled parameters.
Shibboleth Service Provider versiones anteriores a 3.2.1, permite una inyección de contenido porque la generación de plantillas usa parámetros controlados por atacantes
Toni Huttunen and Fraktal Oy discovered that the Shibboleth Service provider allowed content injection due to allowing attacker-controlled parameters in error or other status pages. An attacker could use this to inject malicious content.
*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
- 2021-03-22 CVE Reserved
- 2021-03-22 CVE Published
- 2024-08-03 CVE Updated
- 2025-04-02 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://bugs.debian.org/985405 | Mailing List | |
| https://git.shibboleth.net/view/?p=cpp-sp.git%3Ba=commit%3Bh=d1dbebfadc1bdb824fea63843c4c38fa69e54379 | X_refsource_misc | |
| https://www.debian.org/security/2021/dsa-4872 | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://issues.shibboleth.net/jira/browse/SSPCPP-922 | 2023-11-07 |
| URL | Date | SRC |
|---|---|---|
| https://shibboleth.net/community/advisories/secadv_20210317.txt | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Shibboleth Search vendor "Shibboleth" | Service Provider Search vendor "Shibboleth" for product "Service Provider" | < 3.2.1 Search vendor "Shibboleth" for product "Service Provider" and version " < 3.2.1" | - |
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
| ||||||