CVE-2024-21687 Vulnerability Analysis & Exploit Details

CVE-2024-21687
Vulnerability Scoring

8.1
/10
Severe Risk

Cybersecurity professionals consider CVE-2024-21687 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-2024-21687 Details

Status: Modified

Last updated: 🕓 14 Mar 2025, 16:15 UTC
Originally published on: 🕘 16 Jul 2024, 21:15 UTC

Time between publication and last update: 240 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:N

CVE-2024-21687 Vulnerability Summary

CVE-2024-21687: This High severity File Inclusion vulnerability was introduced in versions 9.0.0, 9.1.0, 9.2.0, 9.3.0, 9.4.0, 9.5.0 and 9.6.0 of Bamboo Data Center and Server. This File Inclusion vulnerability, with a CVSS Score of 8.1, allows an authenticated attacker to get the application to display the contents of a local file, or execute a different files already stored locally on the server which has high impact to confidentiality, high impact to integrity, no impact to availability, and requires no user interaction. Atlassian recommends that Bamboo 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 listed on this CVE See the release notes (https://confluence.atlassian.com/bambooreleases/bamboo-release-notes-1189793869.html). You can download the latest version of Bamboo Data Center and Server from the download center (https://www.atlassian.com/software/bamboo/download-archives). This vulnerability was reported via our Bug Bounty program.

Assessing the Risk of CVE-2024-21687

Access Complexity Graph

The exploitability of CVE-2024-21687 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-2024-21687

CVE-2024-21687 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-2024-21687, 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-2024-21687, 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-2024-21687 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2024-21687 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: None
    CVE-2024-21687 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: 0.069% (probability of exploit)

EPSS Percentile: 33.22% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 66.78% of others.

CVE-2024-21687 References

External References

CWE Common Weakness Enumeration

CWE-98

CAPEC Common Attack Pattern Enumeration and Classification

  • PHP Remote File Inclusion CAPEC-193 In this pattern the adversary is able to load and execute arbitrary code remotely available from the application. This is usually accomplished through an insecurely configured PHP runtime environment and an improperly sanitized "include" or "require" call, which the user can then control to point to any web-accessible file. This allows adversaries to hijack the targeted application and force it to execute their own instructions.

Vulnerable Configurations

  • cpe:2.3:a:atlassian:bamboo:9.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.6:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.7:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.7:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.14:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.14:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.2.15:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.2.15:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.3.3:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.3.3:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.3.4:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.3.4:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.3.5:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.3.5:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.3.6:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.3.6:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.4.3:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.4.3:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.5.2:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.5.2:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.5.3:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.5.3:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.5.4:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.5.4:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.6.2:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:atlassian:bamboo:9.6.3:*:*:*:*:*:*:*
    cpe:2.3:a:atlassian:bamboo:9.6.3:*:*:*:*:*:*:*

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