{"id":50603,"date":"2023-02-17T06:02:15","date_gmt":"2023-02-17T06:02:15","guid":{"rendered":"https:\/\/www.threatshub.org\/blog\/antivirus-apps-are-there-to-protect-you-ciscos-clamav-has-a-heckuva-flaw\/"},"modified":"2023-02-17T06:02:15","modified_gmt":"2023-02-17T06:02:15","slug":"antivirus-apps-are-there-to-protect-you-ciscos-clamav-has-a-heckuva-flaw","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/antivirus-apps-are-there-to-protect-you-ciscos-clamav-has-a-heckuva-flaw\/","title":{"rendered":"Antivirus apps are there to protect you \u2013 Cisco&#8217;s ClamAV has a heckuva flaw"},"content":{"rendered":"<p>Antivirus software is supposed to be an important part of an organization&#8217;s defense against the endless tide of malware.<\/p>\n<p>Cisco&#8217;s open source ClamAV can fill that role \u2013 once you patch the 9.8\/10 rated arbitrary code execution flaw the networking giant revealed on Wednesday.<\/p>\n<p>&#8220;A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code,&#8221; states Cisco&#8217;s <a target=\"_blank\" href=\"https:\/\/sec.cloudapps.cisco.com\/security\/center\/content\/CiscoSecurityAdvisory\/cisco-sa-clamav-q8DThCy\" rel=\"noopener\">security advisory<\/a>, which identifies the issue as CVE-2023-20032.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"condor\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>&#8220;This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write,&#8221; the document elaborates. &#8220;An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition.&#8221;<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xmd=\",fluid,mpu,leaderboard,\" data-lg=\",fluid,mpu,leaderboard,\" data-xlg=\",fluid,billboard,superleaderboard,mpu,leaderboard,\" data-xxlg=\",fluid,billboard,superleaderboard,brandwidth,brandimpact,leaderboard,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<div class=\"adun_eagle_desktop_story_wrapper\">\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"mid\" data-raptor=\"eagle\" data-xxlg=\",mpu,dmpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<\/p><\/div>\n<p>ClamAV&#8217;s blog <a target=\"_blank\" href=\"https:\/\/blog.clamav.net\/\" rel=\"noopener\">reveals<\/a> a second flaw in the software: CVE-2023-20052.<\/p>\n<p>Both are patched in version 1.01 of the application, available <a target=\"_blank\" href=\"https:\/\/www.clamav.net\/downloads\" rel=\"noopener\">here<\/a>.<\/p>\n<p>But fixing ClamAV is not the end of the story. Addressing the faulty file parser also requires updates to other Cisco products, including the Secure Web Appliance hardware. The Secure Endpoint Private Cloud also needs a fix, as does Cisco&#8217;s Secure Endpoint product (formerly known as Advanced Malware Protection for Endpoints) for Linux, Windows, and macOS.<\/p>\n<p>Thankfully, Cisco is not aware of &#8220;any public announcements or malicious use of the vulnerability that is described in this advisory.&#8221;<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/patches&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44Y@8fhpSUAmWv3ghfd0FmagAAAMM&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>But what with ClamAV being free and open source, these flaws will likely be a target that miscreants and criminals won&#8217;t ignore for long.<\/p>\n<p>So while the lack of exploits means this may not be a weekend-killer, swift action \u2013 not clamming up about it \u2013 looks wise. \u00ae<\/p>\n<p> READ MORE <a href=\"https:\/\/go.theregister.com\/feed\/www.theregister.com\/2023\/02\/17\/cisco_clamav_critical_flaw\/\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Switchzilla hardware and software need attention, unless you fancy arbitrary remote code execution Antivirus software is supposed to be an important part of an organization&#8217;s defense against the endless tide of malware.\u2026 READ MORE HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[63],"tags":[],"class_list":["post-50603","post","type-post","status-publish","format-standard","hentry","category-the-register"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Antivirus apps are there to protect you \u2013 Cisco&#039;s ClamAV has a heckuva flaw 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat Intelligent and Cybersecurity News.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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