CVE-2024-21683 Security Vulnerability & Exploit Details

CVE-2024-21683
Vulnerability Scoring

8.8

/10

Severe Risk

Cybersecurity professionals consider CVE-2024-21683 an immediate threat requiring urgent mitigation.

Attack Complexity Details

Attack Complexity: Low
Exploits can be performed without significant complexity or 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-2024-21683 Details

Status: Modified

Last updated: 🕣 21 Nov 2024, 08:54 UTC
Originally published on: 🕚 21 May 2024, 23:15 UTC

Time between publication and last update: 183 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2024-21683 Vulnerability Summary

CVE-2024-21683: This High severity RCE (Remote Code Execution) vulnerability was introduced in version 5.2 of Confluence Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 7.2, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version. If you are unable to do so, upgrade your instance to one of the specified supported fixed versions. See the release notes https://confluence.atlassian.com/doc/confluence-release-notes-327.html You can download the latest version of Confluence Data Center and Server from the download center https://www.atlassian.com/software/confluence/download-archives. This vulnerability was found internally.

Assessing the Risk of CVE-2024-21683

Access Complexity Graph

The exploitability of CVE-2024-21683 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-2024-21683

CVE-2024-21683 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation 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-2024-21683, 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-2024-21683, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: High
Exploiting CVE-2024-21683 can result in unauthorized access to sensitive data, severely compromising data privacy.
Integrity: High
CVE-2024-21683 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
Availability: High
CVE-2024-21683 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: 0.437% (probability of exploit)

EPSS Percentile: 74.89% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 25.11% of others.

CVE-2024-21683 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

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cpe:2.3:a:atlassian:confluence_data_center:7.19.0:*:*:*:*:*:*:*
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cpe:2.3:a:atlassian:confluence_data_center:7.19.16:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:confluence_data_center:7.19.17:*:*:*:*:*:*:*
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CVE-2024-21683 Vulnerability Scoring