CVE-2023-6147 Vulnerability Analysis & Exploit Details

CVE-2023-6147
Vulnerability Scoring

5.7
/10
Significant Risk

Security assessments indicate that CVE-2023-6147 presents a notable risk, potentially requiring prompt 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: Required
    User interaction is necessary for successful exploitation.

CVE-2023-6147 Details

Status: Modified

Last updated: 🕕 13 Feb 2025, 18:16 UTC
Originally published on: 🕗 09 Jan 2024, 08:15 UTC

Time between publication and last update: 401 days

CVSS Release: version 3

CVSS3 Source

bugreport@qualys.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2023-6147 Vulnerability Summary

CVE-2023-6147: Qualys Jenkins Plugin for Policy Compliance prior to version and including 1.0.5 was identified to be affected by a security flaw, which was missing a permission check while performing a connectivity check to Qualys Cloud Services. This allowed any user with login access to configure or edit jobs to utilize the plugin and configure potential a rouge endpoint via which it was possible to control response for certain request which could be injected with XXE payloads leading to XXE while processing the response data

Assessing the Risk of CVE-2023-6147

Access Complexity Graph

The exploitability of CVE-2023-6147 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-2023-6147

CVE-2023-6147 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-2023-6147, 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-2023-6147, 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-2023-6147 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: None
    CVE-2023-6147 poses no threat to data integrity.
  • Availability: None
    CVE-2023-6147 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: 0.053% (probability of exploit)

EPSS Percentile: 24.32% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 75.68% of others.

CVE-2023-6147 References

External References

CWE Common Weakness Enumeration

CWE-611

CAPEC Common Attack Pattern Enumeration and Classification

  • Data Serialization External Entities Blowup CAPEC-221 This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.

Vulnerable Configurations

  • cpe:2.3:a:qualys:policy_compliance:1.0.5:*:*:*:*:jenkins:*:*
    cpe:2.3:a:qualys:policy_compliance:1.0.5:*:*:*:*:jenkins:*:*

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