Improper Input Validation Affecting lftp package, versions <4.8.1-1ubuntu0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UBUNTU1804-LFTP-320195
- published1 Aug 2018
- disclosed1 Aug 2018
Introduced: 1 Aug 2018
CVE-2018-10916 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 lftp to version 4.8.1-1ubuntu0.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lftp package and not the lftp package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
It has been discovered that lftp up to and including version 4.8.3 does not properly sanitize remote file names, leading to a loss of integrity on the local system when reverse mirroring is used. A remote attacker may trick a user to use reverse mirroring on an attacker controlled FTP server, resulting in the removal of all files in the current working directory of the victim's system.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-10916
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10916
- https://security-tracker.debian.org/tracker/CVE-2018-10916
- https://github.com/lavv17/lftp/commit/a27e07d90a4608ceaf928b1babb27d4d803e1992
- https://github.com/lavv17/lftp/issues/452
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00036.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00010.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10916
- https://usn.ubuntu.com/3731-2/