{"id":"CVE-2005-2700","url":"https://www.cyber-defence.io/tools/cve/CVE-2005-2700","generatedAt":"2026-10-27T18:47:49.201Z","title":"ssl_engine_kernel.c in mod_ssl before 2.8.24, when using \"SSLVerifyClient optional\" in the global virtual host configuration, does not properly enforce \"SSLVerifyClient require\" in a per-location context, which allows remote attackers to bypass intended…","description":"ssl_engine_kernel.c in mod_ssl before 2.8.24, when using \"SSLVerifyClient optional\" in the global virtual host configuration, does not properly enforce \"SSLVerifyClient require\" in a per-location context, which allows remote attackers to bypass intended access restrictions.","published":"2005-09-06T23:03:00.000Z","lastModified":"2026-06-16T22:15:30.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":10,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C"},"cwe":[],"affected":["apache/http server","debian/debian linux","canonical/ubuntu linux"],"epss":{"score":0.30576,"percentile":0.98228,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 30.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.trustix.org/pipermail/tsl-announce/2005-October/000354.html","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://marc.info/?l=apache-modssl&m=112569517603897&w=2","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=112604765028607&w=2","tags":["Issue Tracking","Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=112870296926652&w=2","tags":["Issue Tracking","Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://people.apache.org/~jorton/CAN-2005-2700.diff","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16700","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16705","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16714","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16743","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16746","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16748","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16753","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16754","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16769","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16771","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16789","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16864","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/16956","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/17088","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/17288","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/17311","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/17813","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/19072","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/19073","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/21848","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/22523","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-26-102197-1","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-26-102198-1","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2005/dsa-805","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2005/dsa-807","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.gentoo.org/security/en/glsa/glsa-200509-12.xml","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.kb.cert.org/vuls/id/744929","tags":["Third Party Advisory","US Government Resource"],"source":"secalert@redhat.com"},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2005:161","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://www.novell.com/linux/security/advisories/2005_51_apache2.html","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://www.novell.com/linux/security/advisories/2005_52_apache2.html","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://www.osvdb.org/19188","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://www.redhat.com/support/errata/RHSA-2005-608.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.redhat.com/support/errata/RHSA-2005-773.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.redhat.com/support/errata/RHSA-2005-816.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/14721","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/usn-177-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.vupen.com/english/advisories/2005/1625","tags":["Permissions Required"],"source":"secalert@redhat.com"},{"url":"http://www.vupen.com/english/advisories/2005/2659","tags":["Permissions Required"],"source":"secalert@redhat.com"},{"url":"http://www.vupen.com/english/advisories/2006/0789","tags":["Permissions Required"],"source":"secalert@redhat.com"},{"url":"http://www.vupen.com/english/advisories/2006/4207","tags":["Permissions Required"],"source":"secalert@redhat.com"},{"url":"http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=3117","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=167195","tags":["Issue Tracking","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/117bc3f09847ebf020b1bb70301ebcc105ddc446856150b63f37f8eb%40%3Cdev.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/5b1e7d66c5adf286f14f6cc0f857b6fca107444f68aed9e70eedab47%40%3Cdev.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r652fc951306cdeca5a276e2021a34878a76695a9f3cfb6490b4a6840%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"},{"url":"https://lists.apache.org/thread.html/rafd145ba6cd0a4ced113a5823cdaff45aeb36eb09855b216401c66d6%40%3Ccvs.httpd.apache.org%3E","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2005-2700","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}