CVE-2021-32651 Vulnerability Analysis & Exploit Details

CVE-2021-32651
Vulnerability Scoring

3.1
/10
Moderate Risk

Exploiting CVE-2021-32651 requires specific conditions, leading to a moderate security impact.

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: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2021-32651 Details

Status: Modified

Last updated: 🕕 21 Nov 2024, 06:07 UTC
Originally published on: 🕕 01 Jun 2021, 18:15 UTC

Time between publication and last update: 1268 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2021-32651 Vulnerability Summary

CVE-2021-32651: OneDev is a development operations platform. If the LDAP external authentication mechanism is enabled in OneDev versions 4.4.1 and prior, an attacker can manipulate a user search filter to send forged queries to the application and explore the LDAP tree using Blind LDAP Injection techniques. The specific payload depends on how the User Search Filter property is configured in OneDev. This issue was fixed in version 4.4.2.

Assessing the Risk of CVE-2021-32651

Access Complexity Graph

The exploitability of CVE-2021-32651 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-2021-32651

This vulnerability, CVE-2021-32651, requires a high level of attack complexity and low privileges, making it difficult but not impossible to exploit. Organizations should ensure robust security configurations to mitigate risks.

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-2021-32651, 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-2021-32651, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2021-32651 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: None
    CVE-2021-32651 poses no threat to data integrity.
  • Availability: None
    CVE-2021-32651 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 0.078% (probability of exploit)

EPSS Percentile: 36.88% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 63.12% of others.

CVE-2021-32651 References

External References

CWE Common Weakness Enumeration

CWE-90

CAPEC Common Attack Pattern Enumeration and Classification

  • LDAP Injection CAPEC-136 An attacker manipulates or crafts an LDAP query for the purpose of undermining the security of the target. Some applications use user input to create LDAP queries that are processed by an LDAP server. For example, a user might provide their username during authentication and the username might be inserted in an LDAP query during the authentication process. An attacker could use this input to inject additional commands into an LDAP query that could disclose sensitive information. For example, entering a * in the aforementioned query might return information about all users on the system. This attack is very similar to an SQL injection attack in that it manipulates a query to gather additional information or coerce a particular return value.

Vulnerable Configurations

  • cpe:2.3:a:onedev_project:onedev:2.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.0:beta_build118:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.0:beta_build118:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.0:beta_build119:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.0:beta_build119:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.0:beta_build120:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.0:beta_build120:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:2.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:2.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.9:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.9:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.10:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.10:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.11:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.11:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.12:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.12:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.13:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.13:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.0.14:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.0.14:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.6:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.7:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.7:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.8:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.8:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:3.2.9:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:3.2.9:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.0.9:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.0.9:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.1.5:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.1.5:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.1.6:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.1.6:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.3.3:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.3.3:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.3.4:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.3.4:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.3.5:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.3.5:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:onedev_project:onedev:4.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:onedev_project:onedev:4.4.1:*:*:*:*:*:*:*

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