Bug 1610349 (CVE-2018-10916) - CVE-2018-10916 lftp: particular remote file names may lead to current working directory erased
Summary: CVE-2018-10916 lftp: particular remote file names may lead to current working...
Status: NEW
Alias: CVE-2018-10916
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
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Whiteboard: impact=moderate,public=20180516,repor...
Keywords: Security
Depends On: 1611641 1611643 1611640
Blocks: 1581887
TreeView+ depends on / blocked
 
Reported: 2018-07-31 13:15 UTC by Riccardo Schirone
Modified: 2018-08-02 14:56 UTC (History)
1 user (show)

Fixed In Version: lftp 4.8.4
Doc Type: ---
Doc Text:
It has been discovered that lftp 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.
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Regression: ---
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RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Riccardo Schirone 2018-07-31 13:15:14 UTC 
Improperly sanitized remote file names in lftp, up to version 4.8.3, may lead 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' system.

Reference:
https://github.com/lavv17/lftp/issues/452

Upstream patch:
https://github.com/lavv17/lftp/commit/a27e07d90a4608ceaf928b1babb27d4d803e1992
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