HOMEVULNERABILITIESCVE-2018-1283
MEDIUM

CVE-2018-1283

NVD-CWE-noinfoPublished: March 26, 2018· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2018-1283 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.3.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

Apache1 product(s)
http server
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
netapp4 product(s)
santricity cloud connectorstorage automation storestoragegridclustered data ontap
Red Hat1 product(s)
enterprise linux
Source: NVD CPE · 16 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (52)

http://www.securityfocus.com/bid/103520Third Party Advisory · VDB Entry
http://www.securitytracker.com/id/1040568Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2018-1283
CVSS Score5.3 / 10
SeverityMEDIUM
CISA KEVNo
Affected5 vendor(s)
PublishedMar 26, 2018

Related CVEs (NVD-CWE-noinfo)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2018-1283 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.