HOMEVULNERABILITIESCVE-2018-12421
CRITICAL

CVE-2018-12421

CWE-640Published: June 14, 2018· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

LTB (aka LDAP Tool Box) Self Service Password before 1.3 allows a change to a user password (without knowing the old password) via a crafted POST request, because the ldap_bind return value is mishandled and the PHP data type is not constrained to be a string.

NVD Source

Technical Analysis

CVE-2018-12421 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

ltb-project1 product(s)
ldap tool box self service password
Source: NVD CPE · 1 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
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://lists.ltb-project.org/pipermail/ltb-announce/2018-June/000023.html
PATCHhttps://lists.ltb-project.org/pipermail/ltb-announce/2018-June/000023.html
ADVISORYhttps://github.com/ltb-project/self-service-password/issues/209
ADVISORYhttps://github.com/ltb-project/self-service-password/issues/211
ADVISORYhttps://github.com/ltb-project/self-service-password/issues/209
ADVISORYhttps://github.com/ltb-project/self-service-password/issues/211

All References (6)

→
https://github.com/ltb-project/self-service-password/issues/209Third Party Advisory
→
https://github.com/ltb-project/self-service-password/issues/211Third Party Advisory
→
https://lists.ltb-project.org/pipermail/ltb-announce/2018-June/000023.htmlMailing List · Patch · Vendor Advisory
→
https://github.com/ltb-project/self-service-password/issues/209Third Party Advisory
→
https://github.com/ltb-project/self-service-password/issues/211Third Party Advisory
→
https://lists.ltb-project.org/pipermail/ltb-announce/2018-June/000023.htmlMailing List · Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2018-12421
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-640
CISA KEVNo
Affected1 vendor(s)
PublishedJun 14, 2018

Related CVEs (CWE-640)

CVE-2023-30466
9.8
CVE-2022-45637
9.8
CVE-2022-3485
9.8
CVE-2022-37300
9.8
CVE-2022-44004
9.8
CVE-2023-3007
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-12421 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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