CVE-2021-22524 Vulnerability Analysis & Exploit Details

CVE-2021-22524
Vulnerability Scoring

5.4
/10
Significant Risk

Security assessments indicate that CVE-2021-22524 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2021-22524 Details

Status: Modified

Last updated: 🕠 21 Nov 2024, 05:50 UTC
Originally published on: 🕛 13 Sep 2021, 12:15 UTC

Time between publication and last update: 1164 days

CVSS Release: version 3

CVSS3 Source

security@opentext.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:N/A:H

CVE-2021-22524 Vulnerability Summary

CVE-2021-22524: Injection attack caused the denial of service vulnerability in NetIQ Access Manager prior to 5.0.1 and 4.5.4

Assessing the Risk of CVE-2021-22524

Access Complexity Graph

The exploitability of CVE-2021-22524 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2021-22524

The exploitability of CVE-2021-22524 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2021-22524, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2021-22524, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2021-22524 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2021-22524 poses no threat to data integrity.
  • Availability: High
    CVE-2021-22524 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.081% (probability of exploit)

EPSS Percentile: 37.82% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 62.18% of others.

CVE-2021-22524 References

External References

CWE Common Weakness Enumeration

CWE-91

CAPEC Common Attack Pattern Enumeration and Classification

  • XML Injection CAPEC-250 An attacker utilizes crafted XML user-controllable input to probe, attack, and inject data into the XML database, using techniques similar to SQL injection. The user-controllable input can allow for unauthorized viewing of data, bypassing authentication or the front-end application for direct XML database access, and possibly altering database information.
  • XPath Injection CAPEC-83 An attacker can craft special user-controllable input consisting of XPath expressions to inject the XML database and bypass authentication or glean information that they normally would not be able to. XPath Injection enables an attacker to talk directly to the XML database, thus bypassing the application completely. XPath Injection results from the failure of an application to properly sanitize input used as part of dynamic XPath expressions used to query an XML database.

Vulnerable Configurations

  • cpe:2.3:a:microfocus:access_manager:5.0:-:*:*:*:*:*:*
    cpe:2.3:a:microfocus:access_manager:5.0:-:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2021-22524: Combat Critical CVE Threats

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