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CVE-2018-16172· NVD / CVE Program· CNA jpcert

Improper countermeasure against clickjacking attack in client certificates management screen was discovered in Cybozu Remote Service 3.0.0 t

Improper countermeasure against clickjacking attack in client certificates management screen was discovered in Cybozu Remote Service 3.0.0 to 3.1.8, that allows remote attackers to trick a user to delete the registered client certificate.

MediumCVSS 6.5 · v3.0—No exploit No fix recorded
Published
Jan 9, 2019
Updated
Jun 16, 2026
EPSS
0.6% · 47th percentile
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Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

Affected systems

VendorProduct
cybozuremote service manager

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • cybozu remote service manager3.0.0 and later · up to 3.1.8 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (jpcert). Independent of NVD's CPE analysis and usually ahead of it.

  • Cybozu, Inc. Cybozu Remote Service

    • 3.0.0 to 3.1.8affected

Same product

cybozu: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-16171Directory traversal vulnerability in Cybozu Remote Service 3.0.0 to 3.1.8 allows remote attackers to execute Java code file on the server vi
    36Monitor
  • CVE-2021-20795Cross-site request forgery (CSRF) vulnerability in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote attacker to
    35Monitor
  • CVE-2018-16169Cybozu Remote Service 3.0.0 to 3.1.0 allows remote authenticated attackers to upload and execute Java code file on the server via unspecifie
    35Monitor
  • CVE-2018-16170Directory traversal vulnerability in Cybozu Remote Service 3.0.0 to 3.1.8 for Windows allows remote authenticated attackers to read arbitrar
    33Monitor
  • CVE-2014-7266Algorithmic complexity vulnerability in Cybozu Remote Service Manager through 2.3.0 and 3.x through 3.1.2 allows remote attackers to cause a
    32Monitor
  • CVE-2014-1983Unspecified vulnerability in Cybozu Remote Service Manager through 2.3.0 and 3.x before 3.1.1 allows remote attackers to cause a denial of s
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-1021 · Improper Restriction of Rendered UI Layers or Frames

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records