CVE-2012-2663 Security Vulnerability & Exploit Details

CVE-2012-2663
Vulnerability Scoring

7.5

/10

Very High Risk

Due to its potential exploitability, CVE-2012-2663 presents a serious risk to affected systems.

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-2012-2663 Details

Status: Modified

Last updated: 🕜 21 Nov 2024, 01:39 UTC
Originally published on: 🕝 15 Feb 2014, 14:57 UTC

Time between publication and last update: 3931 days

CVSS Release: version 2

CVE-2012-2663 Vulnerability Summary

CVE-2012-2663: extensions/libxt_tcp.c in iptables through 1.4.21 does not match TCP SYN+FIN packets in --syn rules, which might allow remote attackers to bypass intended firewall restrictions via crafted packets. NOTE: the CVE-2012-6638 fix makes this issue less relevant.

Assessing the Risk of CVE-2012-2663

Access Complexity Graph

The exploitability of CVE-2012-2663 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-2012-2663

The vulnerability CVE-2012-2663 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-2012-2663, 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-2012-2663, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: None
CVE-2012-2663 does not compromise confidentiality.
Integrity: None
CVE-2012-2663 does not impact data integrity.
Availability: None
CVE-2012-2663 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: 0.373% (probability of exploit)

EPSS Percentile: 72.89% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 27.11% of others.

CVE-2012-2663 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

cpe:2.3:a:netfilter:iptables:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.0.0:beta:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.0.0:beta:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.0.0:alpha:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.0.0:alpha:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.1a:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.1a:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.6a:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.6a:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.7:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.7:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.7a:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.7a:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.8:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.8:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.9:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.9:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.9:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.9:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.10:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.10:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.11:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.2.11:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.0:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.0:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.4:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.4:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.5:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.5:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.6:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.6:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.7:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.7:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.8:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.3.8:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.0:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.0:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:rc2:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:rc2:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:rc3:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.1:rc3:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.2:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.2:rc1:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.3.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.3.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.3.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.3.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.4:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.4:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.5:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.5:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.6:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.6:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.7:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.7:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.8:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.8:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.9:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.9:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.9.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.9.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.10:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.10:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.11:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.11:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.11.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.11.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.12:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.12:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.12.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.12.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.12.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.12.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.13:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.13:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.14:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.14:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.15:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.15:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16.2:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.16.3:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.17:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.17:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.18:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.18:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.19:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.19:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.19.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.19.1:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.20:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.20:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.21:*:*:*:*:*:*:*
cpe:2.3:a:netfilter:iptables:1.4.21:*:*:*:*:*:*:*

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CVE-2012-2663 Vulnerability Scoring