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Fail2ban の server/action.py における安全でない動作を誘発される脆弱性
Title Fail2ban の server/action.py における安全でない動作を誘発される脆弱性
Summary

Fail2ban の server/action.py は、matches タグのコンテンツを適切に処理しないため、カスタムアクションファイル (custom action file) により、安全でない動作を誘発される脆弱性が存在します。

Possible impacts 第三者により、当該コンテンツの不特定のシンボルを介して、安全でない動作を誘発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 Dec. 6, 2012, midnight
Registration Date Jan. 7, 2013, 11:34 a.m.
Last Update Jan. 7, 2013, 11:34 a.m.
CVSS2.0 : 危険
Score 7.5
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected System
Fail2ban
Fail2ban 0.8.8 未満
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
0 [2013年01月07日]
  掲載		 Feb. 17, 2018, 10:37 a.m.
NVD Vulnerability Information
CVE-2012-5642
Summary

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Publication Date Dec. 31, 2012, 8:50 p.m.
Registration Date Jan. 28, 2021, 3:06 p.m.
Last Update Nov. 21, 2024, 10:45 a.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:fail2ban:fail2ban:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.4:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.1.2:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.5:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.6:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.9:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.7:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.8:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.2:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.7:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.2:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.3:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.3.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.4:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.4:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.5:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.5:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.3:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.8.3:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.7.6:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:* 0.8.7.1
Related information, measures and tools
Common Vulnerabilities List