HOMEVULNERABILITIESCVE-2018-16587
MEDIUM

CVE-2018-16587

CWE-20Published: September 28, 2018· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

In Open Ticket Request System (OTRS) 4.0.x before 4.0.32, 5.0.x before 5.0.30, and 6.0.x before 6.0.11, an attacker could send a malicious email to an OTRS system. If a user with admin permissions opens it, it causes deletions of arbitrary files that the OTRS web server user has write access to.

NVD Source

Technical Analysis

CVE-2018-16587 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

Debian1 product(s)
debian linux
otrs1 product(s)
open ticket request system
Source: NVD CPE · 3 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://community.otrs.com/security-advisory-2018-04-security-update-for-otrs-framework/
PATCHhttps://github.com/OTRS/otrs/commit/a4a1a01f84fac7ab032570ee50b660e2ebb15c01
PATCHhttps://github.com/OTRS/otrs/commit/d8cae00b0f78c2a07bb10cedb817304139395843
PATCHhttps://github.com/OTRS/otrs/commit/d9db0c6a15caafda7689320ecf61777993c33711
PATCHhttps://community.otrs.com/security-advisory-2018-04-security-update-for-otrs-framework/
PATCHhttps://github.com/OTRS/otrs/commit/a4a1a01f84fac7ab032570ee50b660e2ebb15c01
PATCHhttps://github.com/OTRS/otrs/commit/d8cae00b0f78c2a07bb10cedb817304139395843
PATCHhttps://github.com/OTRS/otrs/commit/d9db0c6a15caafda7689320ecf61777993c33711
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/09/msg00033.html
ADVISORYhttps://www.debian.org/security/2018/dsa-4317
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/09/msg00033.html
ADVISORYhttps://www.debian.org/security/2018/dsa-4317

All References (12)

→
https://community.otrs.com/security-advisory-2018-04-security-update-for-otrs-framework/Patch · Vendor Advisory
→
https://github.com/OTRS/otrs/commit/a4a1a01f84fac7ab032570ee50b660e2ebb15c01Patch
→
https://github.com/OTRS/otrs/commit/d8cae00b0f78c2a07bb10cedb817304139395843Patch
→
https://github.com/OTRS/otrs/commit/d9db0c6a15caafda7689320ecf61777993c33711Patch
→
https://lists.debian.org/debian-lts-announce/2018/09/msg00033.htmlMailing List · Third Party Advisory
→
https://www.debian.org/security/2018/dsa-4317Third Party Advisory
→
https://community.otrs.com/security-advisory-2018-04-security-update-for-otrs-framework/Patch · Vendor Advisory
→
https://github.com/OTRS/otrs/commit/a4a1a01f84fac7ab032570ee50b660e2ebb15c01Patch
→
https://github.com/OTRS/otrs/commit/d8cae00b0f78c2a07bb10cedb817304139395843Patch
→
https://github.com/OTRS/otrs/commit/d9db0c6a15caafda7689320ecf61777993c33711Patch
→
https://lists.debian.org/debian-lts-announce/2018/09/msg00033.htmlMailing List · Third Party Advisory
→
https://www.debian.org/security/2018/dsa-4317Third Party Advisory

Quick Facts

CVE IDCVE-2018-16587
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
Affected2 vendor(s)
PublishedSep 28, 2018

Related CVEs (CWE-20)

CVE-2012-0838
10.0
CVE-2011-3092
10.0
CVE-2011-4249
10.0
CVE-2011-4727
10.0
CVE-2011-2397
10.0
CVE-2011-3095
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-16587 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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