Improper Limitation of a Pathname to a Restricted Directory in QTS (QNAP Systems Inc. QTS)

CVE-2018-19945
CRITICAL 9.1

At a glance

Source
NVD
EPSS
EPSS 1.12 % · percentile 66 ()
State
PUBLISHED
Published
Updated
Assigner
qnap
NVD status
Modified

Description

A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.

Weaknesses (CWE)

  • CWE-20 — Improper Input Validation
  • CWE-22 — Improper Limitation of a Pathname to a Restricted Directory
  • CWE-73 — External Control of File Name or Path
  • CWE-284 — Improper Access Control

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 8.5AV:N/AC:L/Au:N/C:N/I:P/A:CNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
QNAP Systems Inc. · QTSaffected unspecified < 4.3.6.0895
QNAP Systems Inc. · QTSaffected unspecified < 4.3.4.0899
QNAP Systems Inc. · QTSunaffected 4.5.x ; unaffected 4.4.x

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD