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CVE-2012-0053 is an information-disclosure vulnerability in Apache HTTP Server versions 2.2.0 through 2.2.21 and version 2.4.0. When constructing a default HTTP 400 Bad Request error response, the server can include insufficiently restricted request-header data. A malicious web script can induce a request containing a malformed or excessively long header and recover HttpOnly cookie values reflected in the resulting error document. The issue is relevant when the default 400 ErrorDocument is used.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Apache httpdにおけるHttpOnly Cookie関連の脆弱性で、非破壊的な挙動確認により脆弱性有無とおおよそのバージョン推定に使われる。Apache httpd 2.2.22以降で修正されたと説明されている。
An information disclosure vulnerability in Apache HTTP Server error responses that could expose HttpOnly cookies when no custom ErrorDocument is configured for HTTP 400 responses.
A medium-severity information-disclosure vulnerability in Apache HTTP Server 2.2.x through 2.2.21. Improper restriction of request-header information in generated HTTP 400 Bad Request documents could allow a remote attacker, using a crafted script and long or malformed header, to obtain HTTPOnly cookie values.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.