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CVE-2020-15811

An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.

Publication date: Wed, 02 Sep 2020 22:15:00 +0000


Cyber News related to CVE-2020-15811

CVE-2020-15811 - An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser ...
3 years ago
CVE-2018-18325 - DNN (aka DotNetNuke) 9.2 through 9.2.2 uses a weak encryption algorithm to protect input parameters. NOTE: this issue exists because of an incomplete fix for CVE-2018-15811. ...
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CVE-2017-15811 - The Pootle Button plugin before 1.2.0 for WordPress has XSS via the assets_url parameter in assets/dialog.php, exploitable via wp-admin/admin-ajax.php. ...
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CVE-2019-15811 - In DomainMOD through 4.13, the parameter daterange in the file reporting/domains/cost-by-month.php has XSS. ...
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CVE-2020-0768 - A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0823, CVE-2020-0825, ...
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