Vulnerability in Apache HTTP Server
CVE-2018-1283
In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.097 (95.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 96th percentile — 95.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.097 · newest: 0.097 · change: 0.000
Affected products
- Apache HTTP Server
- Apache Software Foundation HTTP Server — versions 2.4.0 to 2.4.29
- NetApp Clustered Data Ontap
- NetApp Santricity Cloud Connector
- NetApp Storage Automation Store
- NetApp Storagegrid
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux — versions 6.0, 7.0, 7.4
Public proof-of-concept exploits
References
- usn.ubuntu.com/3627-1/ (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4164 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20180601-0004/ (Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3558 (vendor-advisory, Third Party Advisory)
- support.hpe.com/hpsc/doc/public/display (Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0367 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1040568 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3627-2/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/103520 (VDB Entry, Third Party Advisory, vdb-entry)
- www.openwall.com/lists/oss-security/2018/03/24/4 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-1283?
- CVE-2018-1283 is a medium-severity vulnerability in Apache HTTP Server. CVSS score: 5.3/10. Published 2018-03-26.
- How severe is CVE-2018-1283?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2018-1283 known to be exploited?
- 20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.