CVE-2019-1695 Vulnerability Analysis & Exploit Details

CVE-2019-1695
Vulnerability Scoring

6.5
/10
High Risk

If left unpatched, CVE-2019-1695 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Adjacent_network
    Attack Vector Under Analysis
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2019-1695 Details

Status: Modified

Last updated: 🕟 21 Nov 2024, 04:37 UTC
Originally published on: 🕒 03 May 2019, 15:29 UTC

Time between publication and last update: 2028 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2019-1695 Vulnerability Summary

CVE-2019-1695: A vulnerability in the detection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to send data directly to the kernel of an affected device. The vulnerability exists because the software improperly filters Ethernet frames sent to an affected device. An attacker could exploit this vulnerability by sending crafted packets to the management interface of an affected device. A successful exploit could allow the attacker to bypass the Layer 2 (L2) filters and send data directly to the kernel of the affected device. A malicious frame successfully delivered would make the target device generate a specific syslog entry.

Assessing the Risk of CVE-2019-1695

Access Complexity Graph

The exploitability of CVE-2019-1695 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-2019-1695

With low attack complexity and no required privileges, CVE-2019-1695 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

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-2019-1695, 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-2019-1695, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2019-1695 has no significant impact on data confidentiality.
  • Integrity: High
    CVE-2019-1695 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: None
    CVE-2019-1695 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: 0.054% (probability of exploit)

EPSS Percentile: 25.69% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 74.31% of others.

CVE-2019-1695 References

External References

CWE Common Weakness Enumeration

NVD-CWE-Other

Vulnerable Configurations

  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.3:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.3:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.4:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.4:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.5:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.5:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.6:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.6:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.7:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.7:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.8:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.8:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.9:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.9:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.10:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.10:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.11:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.11:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.0:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.0.0:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(1\):*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(1\):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1\(1\):*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1\(1\):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.4:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.4:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.5:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.1.5:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(1.77\):*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(1.77\):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(2\):*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(2\):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(2\)1:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9\(2\)1:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.1:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.1:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.9:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.9:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.14:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.14:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.18:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.18:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.25:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.25:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.27:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.27:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.32:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.32:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.36:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.36:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.40:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.40:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.47:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.9.2.47:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.0:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.7:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.7:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.10:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.10:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.11:*:*:*:*:*:*:*
    cpe:2.3:o:cisco:adaptive_security_appliance_software:9.10.1.11:*:*:*:*:*:*:*
  • cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*
    cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*
  • cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*
    cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*
  • cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*
    cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*
  • cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*
    cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*

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