CVE-2017-9798
high · 7.5Apache 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.
7.5
CVSS
95.0%
EPSS (exploit prob.)
100th
EPSS percentile
2017-09-18
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-416
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| apache | http_server | <= 2.2.34 |
| apache | http_server | 2.4.0 |
| apache | http_server | 2.4.1 |
| apache | http_server | 2.4.2 |
| apache | http_server | 2.4.3 |
| apache | http_server | 2.4.4 |
| apache | http_server | 2.4.6 |
| apache | http_server | 2.4.7 |
| apache | http_server | 2.4.9 |
| apache | http_server | 2.4.10 |
| apache | http_server | 2.4.12 |
| apache | http_server | 2.4.16 |
| apache | http_server | 2.4.17 |
| apache | http_server | 2.4.18 |
| apache | http_server | 2.4.20 |
| apache | http_server | 2.4.23 |
| apache | http_server | 2.4.25 |
| apache | http_server | 2.4.26 |
| apache | http_server | 2.4.27 |
| debian | debian_linux | 7.0 |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
Check a specific version with /api/v1/cve/match.
References
- http://openwall.com/lists/oss-security/2017/09/18/2
- http://www.debian.org/security/2017/dsa-3980
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/100872
- http://www.securityfocus.com/bid/105598
- http://www.securitytracker.com/id/1039387
- https://access.redhat.com/errata/RHSA-2017:2882
- https://access.redhat.com/errata/RHSA-2017:2972
- https://access.redhat.com/errata/RHSA-2017:3018
- https://access.redhat.com/errata/RHSA-2017:3113
- https://access.redhat.com/errata/RHSA-2017:3114
- https://access.redhat.com/errata/RHSA-2017:3193
- https://access.redhat.com/errata/RHSA-2017:3194
- https://access.redhat.com/errata/RHSA-2017:3195
- https://access.redhat.com/errata/RHSA-2017:3239
- https://access.redhat.com/errata/RHSA-2017:3240
- https://access.redhat.com/errata/RHSA-2017:3475
- https://access.redhat.com/errata/RHSA-2017:3476
- https://access.redhat.com/errata/RHSA-2017:3477
- https://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html
- https://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch
- https://github.com/apache/httpd/commit/4cc27823899e070268b906ca677ee838d07cf67a
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2017-9798