CVE-2021-22962
Ivanti Avalanche SecureFilter allowPassThrough Authentication Bypass Vulnerability
Severity Score
9.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An attacker can send a specially crafted request which could lead to leakage of sensitive data or potentially a resource-based DoS attack.
Un atacante puede enviar una solicitud especialmente manipulada que podría provocar una fuga de datos confidenciales o potencialmente un ataque DoS basado en recursos.
This vulnerability allows remote attackers to partially bypass authentication on affected installations of Ivanti Avalanche. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the allowPassThrough method. The issue results from incorrect string matching when making an authorization decision. An attacker can leverage this vulnerability to partially bypass authentication on the application.
*Credits:
Anonymous
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-01-06 CVE Reserved
- 2023-12-19 CVE Published
- 2024-08-03 CVE Updated
- 2024-11-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://download.wavelink.com/Files/avalanche_v6.4.2_release_notes.txt | Release Notes |
| URL | Date | SRC |
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| URL | Date | SRC |
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| URL | Date | SRC |
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