{"id":10182,"date":"2020-03-27T01:45:01","date_gmt":"2020-03-27T01:45:01","guid":{"rendered":"https:\/\/nsfocusglobal.com\/?p=10182"},"modified":"2020-03-27T01:45:01","modified_gmt":"2020-03-27T01:45:01","slug":"linux-system-pppd-remote-code-execution-vulnerability-cve-2020-8597-threat-alert","status":"publish","type":"post","link":"https:\/\/nsfocusglobal.com\/pt-br\/linux-system-pppd-remote-code-execution-vulnerability-cve-2020-8597-threat-alert\/","title":{"rendered":"Linux System PPPD Remote Code Execution Vulnerability (CVE-2020-8597) Threat Alert"},"content":{"rendered":"

<\/a>Vulnerability Description<\/strong><\/h2>\n

On March 6, the United States Computer Emergency Readiness Team (US-CERT) release a security bulletin to announce a 17-year-old remote code execution vulnerability in the PPP daemon (pppd). This vulnerability affects nearly all Linux-based operating systems and network device firmware. This vulnerability is a buffer overflow vulnerability (CVE-2020-8597), with a CVSS score of 9.8. eap.c in pppd has a rhostname buffer overflow vulnerability in the eap_request and eap_response functions. Via an Extensible Authentication Protocol (EAP) packet, an unauthenticated attacker could exploit this vulnerability to cause arbitrary code execution in an affected system.<\/p>\n

pppd is an implementation of the Point-to-Point Protocol which enables communications and data transmission between nodes. pppd is used to establish internet links such as those over dial-up modems, DSL connections, and Virtual Private Networks. pppd is a daemon at the application layer to implement PPP policies, including control protocols of all extended functions such as authentication, compression\/decompression and encryption\/decryption. pppd usually runs with high privileges and works in conjunction with kernel drivers. This makes it possible for an attacker to potentially execute arbitrary code with system or root level privileges.<\/p>\n

For details of this vulnerability, visit the following link:<\/p>\n

https:\/\/www.debian.org\/security\/2020\/dsa-4632<\/p>\n

https:\/\/thehackernews.com\/2020\/03\/ppp-daemon-vulnerability.html<\/p>\n

https:\/\/people.canonical.com\/~ubuntu-security\/cve\/2020\/CVE-2020-8597.html<\/p>\n

Scope of Impact<\/strong><\/h2>\n

Affected Versions<\/strong><\/h3>\n
    \n
  • 4.2 =< pppd =< 2.4.8<\/li>\n<\/ul>\n

    Affected Systems and Devices<\/strong><\/h3>\n

    Debian<\/p>\n

    Ubuntu<\/p>\n

    SUSE Linux<\/p>\n

    Fedora<\/p>\n

    NetBSD<\/p>\n

    Red Hat Enterprise Linux<\/p>\n

    Cisco CallManager<\/p>\n

    TP-LINK<\/p>\n

    OpenWRT Embedded OS<\/p>\n

    Synology (DiskStation Manager, VisualStation, Router Manager)<\/p>\n

    Mitigation<\/strong><\/h2>\n
      \n
    • \n

      Patch Installation<\/strong><\/h3>\n<\/li>\n<\/ul>\n

      Currently, security updates are released for pppd and products supported by certain Linux systems to fix this vulnerability. Affected users should apply these updates as soon as possible for protection.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      Product<\/strong><\/td>\nVersion with the Vulnerability Fixed<\/strong><\/td>\nReference Link<\/strong><\/td>\n<\/tr>\n
      pppd<\/td>\n8d7970b8f3db727fe798b65f3377fe6787575426<\/td>\nhttps:\/\/github.com\/paulusmack\/ppp\/commit\/8d7970b8f3db727fe798b65f3377fe6787575426<\/td>\n<\/tr>\n
      Centos<\/td>\nppp 2.4.5-34<\/td>\nhttps:\/\/centos.pkgs.org\/7\/centos-updates-x86_64\/ppp-2.4.5-34.el7_7.x86_64.rpm.html<\/td>\n<\/tr>\n
      Ubuntu 12.04 ESM (Precise Pangolin)<\/td>\nReleased (2.4.5-5ubuntu1.3)<\/td>\nhttps:\/\/people.canonical.com\/~ubuntu-security\/cve\/2020\/CVE-2020-8597.html<\/td>\n<\/tr>\n
      Ubuntu 14.04 ESM (Trusty Tahr)<\/td>\nReleased (2.4.5-5.1ubuntu2.3+esm1)<\/td>\nhttps:\/\/people.canonical.com\/~ubuntu-security\/cve\/2020\/CVE-2020-8597.html<\/td>\n<\/tr>\n
      Ubuntu 16.04 LTS (Xenial Xerus)<\/td>\nReleased (2.4.7-1+2ubuntu1.16.04.2)<\/td>\nhttps:\/\/people.canonical.com\/~ubuntu-security\/cve\/2020\/CVE-2020-8597.html<\/td>\n<\/tr>\n
      Ubuntu 18.04 LTS (Bionic Beaver)<\/td>\nReleased (2.4.7-2+2ubuntu1.2)<\/td>\nhttps:\/\/people.canonical.com\/~ubuntu-security\/cve\/2020\/CVE-2020-8597.html<\/td>\n<\/tr>\n
      Ubuntu 19.10 (Eoan Ermine)<\/td>\nReleased (2.4.7-2+4.1ubuntu4.1)<\/td>\nhttps:\/\/people.canonical.com\/~ubuntu-security\/cve\/2020\/CVE-2020-8597.html<\/td>\n<\/tr>\n
      Ubuntu 20.04 (Focal Fossa)<\/td>\nReleased (2.4.7-2+4.1ubuntu5)<\/td>\nhttps:\/\/people.canonical.com\/~ubuntu-security\/cve\/2020\/CVE-2020-8597.html<\/td>\n<\/tr>\n
      Debian 8<\/td>\nppp 2.4.6-3.1+deb8u1<\/td>\nhttps:\/\/security-tracker.debian.org\/tracker\/source-package\/ppp<\/td>\n<\/tr>\n
      Debian 9<\/td>\nppp 2.4.7-1+4+deb9u1<\/td>\nhttps:\/\/www.debian.org\/security\/2020\/dsa-4632<\/td>\n<\/tr>\n
      Debian 10<\/td>\nppp 2.4.7-2+4.1+deb10u1<\/td>\nhttps:\/\/www.debian.org\/security\/2020\/dsa-4632<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

       <\/p>\n

      Note: You are advised to use a software package management tool such as yum or apt to install these security updates.<\/p>\n

      Statement<\/strong><\/h2>\n

      This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and\/or indirect consequences and losses caused by transmitting and\/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add\/delete any information to\/from it, or use this advisory for commercial purposes without permission from NSFOCUS.<\/p>\n

      About NSFOCUS<\/strong><\/h2>\n

      NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.<\/p>\n

      NSFOCUS works with Fortune Global 500 companies, including four of the world’s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA).<\/p>\n

      A wholly owned subsidiary of NSFOCUS Information Technology Co. Ltd., the company has operations in the Americas, Europe, the Middle East and Asia Pacific.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Vulnerability Description On March 6, the United States Computer Emergency Readiness Team (US-CERT) release a security bulletin to announce a 17-year-old remote code execution vulnerability in the PPP daemon (pppd). This vulnerability affects nearly all Linux-based operating systems and network device firmware. This vulnerability is a buffer overflow vulnerability (CVE-2020-8597), with a CVSS score of […]<\/p>\n","protected":false},"author":1,"featured_media":8904,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[6],"tags":[491],"class_list":["post-10182","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-emergency-response","tag-linux"],"acf":[],"yoast_head":"\nLinux System PPPD Remote Code Execution Vulnerability (CVE-2020-8597) Threat Alert - NSFOCUS<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux System PPPD Remote Code Execution Vulnerability (CVE-2020-8597) Threat Alert - 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