NVD Vulnerability Detail
Search Exploit, PoC
CVE-2022-20685
Summary

A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Publication Date Nov. 16, 2024, 1:15 a.m.
Registration Date Nov. 16, 2024, 5:01 a.m.
Last Update Nov. 19, 2024, 2:11 a.m.
CVSS3.1 : HIGH
スコア 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C) なし
完全性への影響(I) なし
可用性への影響(A)
Related information, measures and tools
Common Vulnerabilities List

JVN Vulnerability Information
複数のシスコシステムズ製品における整数オーバーフローの脆弱性
Title 複数のシスコシステムズ製品における整数オーバーフローの脆弱性
Summary

シスコシステムズの Cisco Cyber Vision、Cisco Firepower Threat Defense ソフトウェア、Cisco Unified Threat Defense Snort Intrusion Prevention System Engine には、整数オーバーフローの脆弱性が存在します。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。 
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。

Publication Date Jan. 19, 2022, midnight
Registration Date July 1, 2025, 10:11 a.m.
Last Update July 1, 2025, 10:11 a.m.
Affected System
シスコシステムズ
Cisco Cyber Vision 3.0.0
Cisco Cyber Vision 3.0.1
Cisco Cyber Vision 3.0.2
Cisco Cyber Vision 3.0.3
Cisco Cyber Vision 3.0.4
Cisco Cyber Vision 3.0.5
Cisco Cyber Vision 3.0.6
Cisco Cyber Vision 3.1.0
Cisco Cyber Vision 3.1.1
Cisco Cyber Vision 3.1.2
Cisco Cyber Vision 3.2.0
Cisco Cyber Vision 3.2.1
Cisco Cyber Vision 3.2.2
Cisco Cyber Vision 3.2.3
Cisco Cyber Vision 3.2.4
Cisco Cyber Vision 4.0.0
Cisco Cyber Vision 4.0.1
Cisco Firepower Threat Defense ソフトウェア 6.2.3
Cisco Firepower Threat Defense ソフトウェア 6.2.3.1
Cisco Firepower Threat Defense ソフトウェア 6.2.3.10
Cisco Firepower Threat Defense ソフトウェア 6.2.3.11
Cisco Firepower Threat Defense ソフトウェア 6.2.3.12
Cisco Firepower Threat Defense ソフトウェア 6.2.3.13
Cisco Firepower Threat Defense ソフトウェア 6.2.3.14
Cisco Firepower Threat Defense ソフトウェア 6.2.3.15
Cisco Firepower Threat Defense ソフトウェア 6.2.3.16
Cisco Firepower Threat Defense ソフトウェア 6.2.3.17
Cisco Firepower Threat Defense ソフトウェア 6.2.3.18
Cisco Firepower Threat Defense ソフトウェア 6.2.3.2
Cisco Firepower Threat Defense ソフトウェア 6.2.3.3
Cisco Firepower Threat Defense ソフトウェア 6.2.3.4
Cisco Firepower Threat Defense ソフトウェア 6.2.3.5
Cisco Firepower Threat Defense ソフトウェア 6.2.3.6
Cisco Firepower Threat Defense ソフトウェア 6.2.3.7
Cisco Firepower Threat Defense ソフトウェア 6.2.3.8
Cisco Firepower Threat Defense ソフトウェア 6.2.3.9
Cisco Firepower Threat Defense ソフトウェア 6.4.0
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.12.1a
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.12.2
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.12.3
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.12.4
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.12.5
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.12.6
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.6.1
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.6.10
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.6.5
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.6.6
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.6.7a
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 16.6.9
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 17.1.1
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 17.2.1r
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 17.3.1a
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 17.3.2
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 17.3.3
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 17.3.4
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 3.17.0s
Cisco Unified Threat Defense Snort Intrusion Prevention System Engine 3.17.1s
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2025年07月01日]
  掲載
July 1, 2025, 10:11 a.m.