CVE-2018-1000544: Malicious File Upload
First published: Tue Jun 19 2018(Updated: )
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.. This is similar to CVE-2017-5946 which was patched in 1.2.1 but the fix in that case was incomplete.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/rubyzip | <1.2.2 | 1.2.2 |
| Rubyzip Project Rubyzip | <=1.2.1 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Redhat Cloudforms | =4.6 | |
| rubygems/rubyzip | <=1.2.1 | 1.2.2 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000544
- https://github.com/rubyzip/rubyzip/issues/369
- https://access.redhat.com/errata/RHSA-2018:3466
- https://lists.debian.org/debian-lts-announce/2018/08/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00002.html
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubyzip/CVE-2018-1000544.yml
- https://github.com/advisories/GHSA-vqcq-mrmw-mcmg (Advisory)
- https://snyk.io/research/zip-slip-vulnerability
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1593006
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1595625
- https://bugzilla.redhat.com/show_bug.cgi?id=1593001
Frequently Asked Questions
What is CVE-2018-1000544?
CVE-2018-1000544 is a Directory Traversal vulnerability in the rubyzip gem, specifically in the Zip::File component.
What is the severity of CVE-2018-1000544?
CVE-2018-1000544 has a severity score of 9.8, which is considered critical.
How can CVE-2018-1000544 be exploited?
CVE-2018-1000544 can be exploited if a site allows uploading of .zip files. An attacker can upload a malicious file that can lead to arbitrary file write on the filesystem.
Which versions of the rubyzip gem are affected by CVE-2018-1000544?
Versions 1.2.1 and earlier of the rubyzip gem are affected by CVE-2018-1000544.
How can I fix CVE-2018-1000544?
To fix CVE-2018-1000544, update the rubyzip gem to version 1.2.2 or higher.
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/type
- agent/weakness
- collector/github-advisory
- alias/GHSA-vqcq-mrmw-mcmg
- alias/CVE-2018-1000544
- collector/github-advisory-latest
- collector/nvd-cve
- collector/nvd-index
- collector/redhat-bugzilla
- source/Red Hat
- agent/software-canonical-lookup
- package-manager/rubygems
- vendor/rubyzip project
- canonical/rubyzip project rubyzip
- version/rubyzip project rubyzip/1.2.1
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- vendor/redhat
- canonical/redhat cloudforms
- version/redhat cloudforms/4.6
- package-manager/redhat