CVE-2015-7856 Vulnerability Analysis & Exploit Details

CVE-2015-7856
Vulnerability Scoring

10.0
/10
Critical Threat

An extreme security risk, CVE-2015-7856 must be addressed immediately to prevent system compromise.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No authentication is required for exploitation.
  • Scope:
    Impact is confined to the initially vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2015-7856 Details

Status: Modified

Last updated: 🕝 21 Nov 2024, 02:37 UTC
Originally published on: 🕣 16 Oct 2015, 20:59 UTC

Time between publication and last update: 3323 days

CVSS Release: version 2

CVE-2015-7856 Vulnerability Summary

CVE-2015-7856: OpenNMS has a default password of rtc for the rtc account, which makes it easier for remote attackers to obtain access by leveraging knowledge of the credentials.

Assessing the Risk of CVE-2015-7856

Access Complexity Graph

The exploitability of CVE-2015-7856 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-2015-7856

The vulnerability CVE-2015-7856 is highly exploitable since it requires low complexity and no authentication.

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-2015-7856, 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-2015-7856, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2015-7856 does not compromise confidentiality.
  • Integrity: None
    CVE-2015-7856 does not impact data integrity.
  • Availability: None
    CVE-2015-7856 does not affect 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: 0.553% (probability of exploit)

EPSS Percentile: 77.81% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 22.189999999999998% of others.

CVE-2015-7856 References

External References

CWE Common Weakness Enumeration

CWE-255

Vulnerable Configurations

  • cpe:2.3:a:opennms:opennms:-:*:*:*:*:*:*:*
    cpe:2.3:a:opennms:opennms:-:*:*:*:*:*:*:*

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