{"id":67095,"date":"2025-07-31T02:31:55","date_gmt":"2025-07-30T23:01:55","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-54581-vproxy-http-proxy-authorization-header-dos-vulnerability\/"},"modified":"2025-07-31T02:31:55","modified_gmt":"2025-07-30T23:01:55","slug":"cve-2025-54581-vproxy-http-proxy-authorization-header-dos-vulnerability","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-54581-vproxy-http-proxy-authorization-header-dos-vulnerability\/","title":{"rendered":"CVE-2025-54581 &#8211; Vproxy HTTP Proxy-Authorization Header DoS Vulnerability"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-54581<br \/>\n<br \/>\n<strong>Published : <\/strong> July 30, 2025, 8:15 p.m. | 1\u00a0hour, 14\u00a0minutes ago<br \/>\n<br \/>\n<strong>Description : <\/strong>vproxy is an HTTP\/HTTPS\/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as &#8216;configuredUser-ttl-0&#8217;), the modulo operation &#8216;timestamp % ttl&#8217; will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0.<br \/>\n<br \/>\n<strong>Severity:<\/strong> 7.5 | HIGH<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-54581 Published : July 30, 2025, 8:15 p.m. | 1\u00a0hour, 14\u00a0minutes ago Description : vproxy is an HTTP\/HTTPS\/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-67095","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/67095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=67095"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/67095\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=67095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=67095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=67095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}