漏洞描述
Apache Tomcat versions 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56, and 7.0.27 to 7.0.104 contain a vulnerability in the WebSocket module where the payload length of WebSocket frames is not correctly validated. This can lead to an infinite loop when processing frames with invalid payload lengths. Attackers can exploit this flaw by sending multiple malicious requests, resulting in a denial of service (DoS) on the affected Tomcat instance.
影响产品
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html↗lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html↗packetstormsecurity.comhttp://packetstormsecurity.com/files/161213/WordPress-5.0.0-Remote-Code-Execution.html↗kc.mcafee.comhttps://kc.mcafee.com/corporate/index?page=content&id=SB10332↗lists.apache.orghttps://lists.apache.org/thread.html/r4e5d3c09f4dd2923191e972408b40fb8b42dbff0bc7904d44b651e50%40%3Cusers.tomcat.apache.org%3E↗security.netapp.comhttps://security.netapp.com/advisory/ntap-20200724-0003/↗github.comhttps://github.com/RedTeamPentesting/CVE-2020-13935↗