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CVE-2024-45796— Suricata defrag: off by one can lead to policy bypass

Quick assessment

Affected
OISF suricata
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Suricata是Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata 7.0.7之前版本存在安全漏洞，该漏洞源于片段重组期间的逻辑错误可能会导致有效流量重组失败。

CVSS 5.3 · Medium EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1102 · Web Service
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I. Basic Information for CVE-2024-45796

Vulnerability Information
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Vulnerability Title
Suricata defrag: off by one can lead to policy bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, a logic error during fragment reassembly can lead to failed reassembly for valid traffic. An attacker could craft packets to trigger this behavior.This issue has been addressed in 7.0.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
Off-by-one错误
Source: CVE Program / CVE List V5
Vulnerability Title
Suricata 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Suricata是Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata 7.0.7之前版本存在安全漏洞，该漏洞源于片段重组期间的逻辑错误可能会导致有效流量重组失败。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OISF suricata < 7.0.7 -

II. Public POCs for CVE-2024-45796

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III. Intelligence Information for CVE-2024-45796

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Vendor Advisories for CVE-2024-45796 (1)

Other References for CVE-2024-45796 (1)

Same Patch Batch · OISF · 2024-10-16 · 6 CVEs total

CVE-2024-45795 7.5 HIGH Suricata detect/datasets: reachable assertion with unimplemented rule option
CVE-2024-45797 7.5 HIGH LibHTP's unbounded header handling leads to denial service
CVE-2024-47188 7.5 HIGH Suricata http/byte-ranges: missing hashtable random seed leads to potential DoS
CVE-2024-47522 7.5 HIGH Suricata ja4: invalid alpn leads to panic
CVE-2024-47187 7.5 HIGH Suricata datasets: missing hashtable random seed leads to potential DoS

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-193

V. Comments for CVE-2024-45796

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