Bug 1610349 – CVE-2018-10916 lftp: particular remote file names may lead to current working directory erased

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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

Aliases:	CVE-2018-10916

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20180516,repor...
Keywords:	Security

Depends On:	1611641 1611643 1611640
Blocks:	1581887
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Reported:	2018-07-31 09:15 EDT by Riccardo Schirone
Modified:	2018-08-02 10:56 EDT (History)
CC List:	1 user (show)

See Also:
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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RHEL 7.3 requirements from Atomic Host:
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Description Riccardo Schirone 2018-07-31 09:15:14 EDT

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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