NVD Vulnerability Detail

CVE-2017-9798

Summary	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.
Publication Date	Sept. 19, 2017, 12:29 a.m.
Registration Date	Jan. 26, 2021, 1:31 p.m.
Last Update	Nov. 21, 2024, 12:36 p.m.

CVSS3.1 : HIGH
スコア	7.5
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	高
完全性への影響(I)	なし
可用性への影響(A)	なし

CVSS2.0 : MEDIUM
Score	5.0
Vector	AV:N/AC:L/Au:N/C:P/I:N/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	低
完全性への影響(I)	なし
可用性への影響(A)	なし
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:apache:http_server:2.4.1:::::::*
cpe:2.3:a:apache:http_server:2.4.20:::::::*
cpe:2.3:a:apache:http_server:2.4.6:::::::*
cpe:2.3:a:apache:http_server:2.4.0:::::::*
cpe:2.3:a:apache:http_server:2.4.12:::::::*
cpe:2.3:a:apache:http_server:2.4.3:::::::*
cpe:2.3:a:apache:http_server:2.4.23:::::::*
cpe:2.3:a:apache:http_server:2.4.4:::::::*
cpe:2.3:a:apache:http_server:2.4.10:::::::*
cpe:2.3:a:apache:http_server:2.4.7:::::::*
cpe:2.3:a:apache:http_server:2.4.25:::::::*
cpe:2.3:a:apache:http_server:2.4.26:::::::*
cpe:2.3:a:apache:http_server:2.4.18:::::::*
cpe:2.3:a:apache:http_server:2.4.2:::::::*
cpe:2.3:a:apache:http_server:2.4.17:::::::*
cpe:2.3:a:apache:http_server:2.4.16:::::::*
cpe:2.3:a:apache:http_server:2.4.9:::::::*
cpe:2.3:a:apache:http_server:2.4.27:::::::*
cpe:2.3:a:apache:http_server::::::::		2.2.34

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:8.0:::::::*
cpe:2.3:o:debian:debian_linux:7.0:::::::*
cpe:2.3:o:debian:debian_linux:9.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://openwall.com/lists/oss-security/2017/09/18/2	Mailing List VDB Entry
2	http://openwall.com/lists/oss-security/2017/09/18/2	Mailing List VDB Entry
3	http://www.debian.org/security/2017/dsa-3980	Third Party Advisory
4	http://www.debian.org/security/2017/dsa-3980	Third Party Advisory
5	http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html	Patch Third Party Advisory
6	http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html	Patch Third Party Advisory
7	http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html	Patch Third Party Advisory
8	http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html	Patch Third Party Advisory
9	http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html	Patch Third Party Advisory
10	http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html	Patch Third Party Advisory
11	http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html	Patch Third Party Advisory
12	http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html	Patch Third Party Advisory
13	http://www.securityfocus.com/bid/100872	Third Party Advisory VDB Entry
14	http://www.securityfocus.com/bid/100872	Third Party Advisory VDB Entry
15	http://www.securityfocus.com/bid/105598	Third Party Advisory VDB Entry
16	http://www.securityfocus.com/bid/105598	Third Party Advisory VDB Entry
17	http://www.securitytracker.com/id/1039387	Third Party Advisory VDB Entry
18	http://www.securitytracker.com/id/1039387	Third Party Advisory VDB Entry
19	https://access.redhat.com/errata/RHSA-2017:2882	Third Party Advisory
20	https://access.redhat.com/errata/RHSA-2017:2882	Third Party Advisory
21	https://access.redhat.com/errata/RHSA-2017:2972	Third Party Advisory
22	https://access.redhat.com/errata/RHSA-2017:2972	Third Party Advisory
23	https://access.redhat.com/errata/RHSA-2017:3018	Third Party Advisory
24	https://access.redhat.com/errata/RHSA-2017:3018	Third Party Advisory
25	https://access.redhat.com/errata/RHSA-2017:3113	Third Party Advisory
26	https://access.redhat.com/errata/RHSA-2017:3113	Third Party Advisory
27	https://access.redhat.com/errata/RHSA-2017:3114	Third Party Advisory
28	https://access.redhat.com/errata/RHSA-2017:3114	Third Party Advisory
29	https://access.redhat.com/errata/RHSA-2017:3193	Third Party Advisory
30	https://access.redhat.com/errata/RHSA-2017:3193	Third Party Advisory
31	https://access.redhat.com/errata/RHSA-2017:3194	Third Party Advisory
32	https://access.redhat.com/errata/RHSA-2017:3194	Third Party Advisory
33	https://access.redhat.com/errata/RHSA-2017:3195	Third Party Advisory
34	https://access.redhat.com/errata/RHSA-2017:3195	Third Party Advisory
35	https://access.redhat.com/errata/RHSA-2017:3239	Third Party Advisory
36	https://access.redhat.com/errata/RHSA-2017:3239	Third Party Advisory
37	https://access.redhat.com/errata/RHSA-2017:3240	Third Party Advisory
38	https://access.redhat.com/errata/RHSA-2017:3240	Third Party Advisory
39	https://access.redhat.com/errata/RHSA-2017:3475	Third Party Advisory
40	https://access.redhat.com/errata/RHSA-2017:3475	Third Party Advisory
41	https://access.redhat.com/errata/RHSA-2017:3476	Third Party Advisory
42	https://access.redhat.com/errata/RHSA-2017:3476	Third Party Advisory
43	https://access.redhat.com/errata/RHSA-2017:3477	Third Party Advisory
44	https://access.redhat.com/errata/RHSA-2017:3477	Third Party Advisory
45	https://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html	Exploit Patch Technical Description Third Party Advisory
46	https://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html	Exploit Patch Technical Description Third Party Advisory
47	https://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch	Exploit Patch Technical Description Third Party Advisory
48	https://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch	Exploit Patch Technical Description Third Party Advisory
49	https://github.com/apache/httpd/commit/4cc27823899e070268b906ca677ee838d07cf67a	Patch Vendor Advisory
50	https://github.com/apache/httpd/commit/4cc27823899e070268b906ca677ee838d07cf67a	Patch Vendor Advisory
51	https://github.com/hannob/optionsbleed	Exploit Third Party Advisory
52	https://github.com/hannob/optionsbleed	Exploit Third Party Advisory
53	https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2017-9798	Vendor Advisory
54	https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2017-9798	Vendor Advisory
55	https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
56	https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
57	https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
58	https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
59	https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
60	https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
61	https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
62	https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
63	https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E
64	https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E
65	https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
66	https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
67	https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E
68	https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E
69	https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
70	https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
71	https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
72	https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
73	https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
74	https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
75	https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
76	https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
77	https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
78	https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
79	https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
80	https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
81	https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
82	https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
83	https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
84	https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
85	https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
86	https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
87	https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
88	https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
89	https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E
90	https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E
91	https://security.gentoo.org/glsa/201710-32	Third Party Advisory
92	https://security.gentoo.org/glsa/201710-32	Third Party Advisory
93	https://security.netapp.com/advisory/ntap-20180601-0003/	Third Party Advisory
94	https://security.netapp.com/advisory/ntap-20180601-0003/	Third Party Advisory
95	https://security-tracker.debian.org/tracker/CVE-2017-9798	Third Party Advisory
96	https://security-tracker.debian.org/tracker/CVE-2017-9798	Third Party Advisory
97	https://support.apple.com/HT208331	Third Party Advisory
98	https://support.apple.com/HT208331	Third Party Advisory
99	https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us	Third Party Advisory
100	https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us	Third Party Advisory
101	https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch	Vendor Advisory
102	https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch	Vendor Advisory
103	https://www.exploit-db.com/exploits/42745/	Exploit Third Party Advisory VDB Entry
104	https://www.exploit-db.com/exploits/42745/	Exploit Third Party Advisory VDB Entry
105	https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html	Patch Third Party Advisory
106	https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html	Patch Third Party Advisory
107	https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html	Patch Third Party Advisory
108	https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html	Patch Third Party Advisory
109	https://www.tenable.com/security/tns-2019-09	Third Party Advisory
110	https://www.tenable.com/security/tns-2019-09	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-416	解放済みメモリの使用	https://cwe.mitre.org/data/definitions/416.html

JVN Vulnerability Information

Apache HTTP Server における解放済みメモリの使用に関する脆弱性

Title	Apache HTTP Server における解放済みメモリの使用に関する脆弱性
Summary	Apache HTTP Server には、解放済みメモリの使用に関する脆弱性が存在します。
Possible impacts	情報を取得される可能性があります。
Solution	ベンダ情報および参考情報を参照して適切な対策を実施してください。
Publication Date	Sept. 8, 2017, midnight
Registration Date	Oct. 16, 2017, 6:11 p.m.
Last Update	Feb. 13, 2018, 2:21 p.m.

Affected System

Apache Software Foundation

Apache HTTP Server 2.2.34 まで

Apache HTTP Server 2.4.27 までの 2.4.x

日立

Cosminexus HTTP Server

Hitachi Application Server

Hitachi Application Server for Developers

Hitachi Web Server

Hitachi Web Server - Custom Edition

uCosminexus Application Server

uCosminexus Application Server (64)

uCosminexus Application Server -R

uCosminexus Application Server Express

uCosminexus Application Server Enterprise

uCosminexus Application Server Smart Edition

uCosminexus Application Server Standard

uCosminexus Application Server Standard -R

uCosminexus Developer

uCosminexus Developer 01

uCosminexus Developer Professional

uCosminexus Developer Professional for Plug-in

uCosminexus Developer Standard

uCosminexus Primary Server Base

uCosminexus Primary Server Base(64)

uCosminexus Service Architect

uCosminexus Service Platform

uCosminexus Service Platform (64)

uCosminexus Service Platform - Messaging

Debian

Debian GNU/Linux

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2017-9798	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9798
National Vulnerability Database (NVD)
2	CVE-2017-9798	https://nvd.nist.gov/vuln/detail/CVE-2017-9798
Security Bug Tracker
3	CVE-2017-9798	https://security-tracker.debian.org/tracker/CVE-2017-9798

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-416	https://cwe.mitre.org/data/definitions/416.html

ベンダー情報

No	Name	URL
Apache-SVN
1	httpd/httpd/branches/2.4.x/server/core.c	https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch
GitHub
2	core: Disallow Methods' registration at run time (.htaccess), they may be used only if registered at init time (httpd.conf).	https://github.com/apache/httpd/commit/29afdd2550b3d30a8defece2b95ae81edcf66ac9
Hitachi Software Vulnerability Information
3	hitachi-sec-2018-107	http://www.hitachi.co.jp/Prod/comp/soft1/global/security/info/vuls/hitachi-sec-2018-107/index.html
ソフトウェア製品セキュリティ情報
4	hitachi-sec-2018-107	http://www.hitachi.co.jp/Prod/comp/soft1/security/info/vuls/hitachi-sec-2018-107/index.html

Change Log

No	Changed Details	Date of change
0	[2017年10月16日] 掲載 [2018年02月13日] 影響を受けるシステム：ベンダ情報の追加に伴い内容を更新ベンダ情報：日立 (hitachi-sec-2018-107) を追加	Feb. 17, 2018, 10:37 a.m.

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:apache:http_server:2.4.1:::::::*
cpe:2.3:a:apache:http_server:2.4.20:::::::*
cpe:2.3:a:apache:http_server:2.4.6:::::::*
cpe:2.3:a:apache:http_server:2.4.0:::::::*
cpe:2.3:a:apache:http_server:2.4.12:::::::*
cpe:2.3:a:apache:http_server:2.4.3:::::::*
cpe:2.3:a:apache:http_server:2.4.23:::::::*
cpe:2.3:a:apache:http_server:2.4.4:::::::*
cpe:2.3:a:apache:http_server:2.4.10:::::::*
cpe:2.3:a:apache:http_server:2.4.7:::::::*
cpe:2.3:a:apache:http_server:2.4.25:::::::*
cpe:2.3:a:apache:http_server:2.4.26:::::::*
cpe:2.3:a:apache:http_server:2.4.18:::::::*
cpe:2.3:a:apache:http_server:2.4.2:::::::*
cpe:2.3:a:apache:http_server:2.4.17:::::::*
cpe:2.3:a:apache:http_server:2.4.16:::::::*
cpe:2.3:a:apache:http_server:2.4.9:::::::*
cpe:2.3:a:apache:http_server:2.4.27:::::::*
cpe:2.3:a:apache:http_server::::::::		2.2.34