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CVE-2018-1000544
CRITICAL
rubyzip gem rubyzip version 1.2.1 and earlier contains a Directory Traversal vulnerability in Zip::File component that can result in write arbitrary files to the filesystem. This attack appear to be exploitable via If a site allows uploading of .zip files , an attacker can upload a malicious file that contains symlinks or files with absolute pathnames "../" to write arbitrary files to the filesystem..
Published: Jun 26, 2018
Modified: Jun 17, 2026
CWE-59
CWE-434
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (4)
| Vendor | Product | Version |
|---|---|---|
| rubyzip_project | rubyzip | * |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| redhat | cloudforms | 4.6 |
GitHub Security Advisory GHSA-vqcq-mrmw-mcmg
Rubyzip gem contains a Directory Traversal vulnerability in zip file component
rubygems
rubyzip
<= 1.2.1
Fixed: 1.2.2
References (8)
- https://access.redhat.com/errata/RHSA-2018:3466 Third Party Advisory
- https://github.com/rubyzip/rubyzip/issues/369 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00013.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00002.html Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3466 Third Party Advisory
- https://github.com/rubyzip/rubyzip/issues/369 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00013.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00002.html Mailing List, Third Party Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
4.59%
Top 9% most likely to be exploited
Threat Score
40.6 / 100
Data Sources
NVD
EPSS
GitHub