漏洞描述
Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.
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.apache.orghttps://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3018↗www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html↗lists.apache.orghttps://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E↗www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html↗lists.apache.orghttps://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E↗www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html↗security.gentoo.orghttps://security.gentoo.org/glsa/201710-32↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:2972↗support.apple.comhttps://support.apple.com/HT208331↗www.debian.orghttp://www.debian.org/security/2017/dsa-3980↗github.comhttps://github.com/apache/httpd/commit/4cc27823899e070268b906ca677ee838d07cf67a↗support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us↗lists.apache.orghttps://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E↗www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html↗openwall.comhttp://openwall.com/lists/oss-security/2017/09/18/2↗lists.apache.orghttps://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E↗security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2017-9798↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3240↗lists.apache.orghttps://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3195↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3239↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3475↗lists.apache.orghttps://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E↗svn.apache.orghttps://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch↗www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3113↗github.comhttps://github.com/hannob/optionsbleed↗lists.apache.orghttps://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E↗lists.apache.orghttps://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3193↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3194↗www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:2882↗www.tenable.comhttps://www.tenable.com/security/tns-2019-09↗lists.apache.orghttps://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E↗security.netapp.comhttps://security.netapp.com/advisory/ntap-20180601-0003/↗httpd.apache.orghttps://httpd.apache.org/security/vulnerabilities_24.html#CVE-2017-9798↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3114↗www.securitytracker.comhttp://www.securitytracker.com/id/1039387↗www.securityfocus.comhttp://www.securityfocus.com/bid/100872↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3477↗blog.fuzzing-project.orghttps://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch↗www.securityfocus.comhttp://www.securityfocus.com/bid/105598↗access.redhat.comhttps://access.redhat.com/errata/RHSA-2017:3476↗blog.fuzzing-project.orghttps://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html↗