Bug 540317

Summary:	OpenSSH-server banner displayed incorrectly
Product:	[Fedora] Fedora	Reporter:	Konstantin <k.koshelyaev>
Component:	openssh	Assignee:	Jan F. Chadima <jchadima>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	12	CC:	jchadima, k.koshelyaev, mgrepl, tmraz
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-11-23 07:39:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Konstantin 2009-11-23 02:17:28 UTC

Description of problem:
Backslashes in banner file are doubled when displayed by SSHD.

Version-Release number of selected component (if applicable):
openssh-server-5.2p1-31.fc12.i686

How reproducible:
Create banner file containing this text: "/ / \ \".
Configure SSHD to use prepared banner.

Steps to Reproduce:
1. Start SSHD.
2. Connect to the server.
3. Enter user name. Check the banner.
  
Actual results:
Backslashed are doubled:
"/ / \\ \\"

Expected results:
Single backslashes:
"/ / \ \"

Comment 1 Tomas Mraz 2009-11-23 07:39:27 UTC

The banner messages are escaped not by SSHD but by the ssh client so a rogue server can not send terminal escapes to the client's terminal.