HOMEVULNERABILITIESCVE-2018-19052
HIGH

CVE-2018-19052

CWE-22Published: November 7, 2018· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

An issue was discovered in mod_alias_physical_handler in mod_alias.c in lighttpd before 1.4.50. There is potential ../ path traversal of a single directory above an alias target, with a specific mod_alias configuration where the matched alias lacks a trailing '/' character, but the alias target filesystem path does have a trailing '/' character.

NVD Source

Technical Analysis

CVE-2018-19052 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

Debian1 product(s)
debian linux
lighttpd1 product(s)
lighttpd
openSUSE2 product(s)
backports sleleap
SUSE1 product(s)
suse linux enterprise server
Source: NVD CPE · 7 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00054.html
ADVISORYhttps://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/01/msg00012.html
ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-10/msg00054.html
ADVISORYhttps://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/01/msg00012.html

All References (6)

→
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00054.htmlMailing List · Third Party Advisory
→
https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1Exploit · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2022/01/msg00012.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00054.htmlMailing List · Third Party Advisory
→
https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1Exploit · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2022/01/msg00012.htmlMailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2018-19052
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-22
CISA KEVNo
Affected4 vendor(s)
PublishedNov 7, 2018

Related CVEs (CWE-22)

CVE-2008-6833
10.0
CVE-2014-3914
10.0
CVE-2010-5324
10.0
CVE-2008-4526
10.0
CVE-2010-5323
10.0
CVE-2008-6834
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-19052 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.COM. CVE data is provided under the NVD usage policy.
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