All SCP ( Secure Copy Protocol ) execution from the conclusion 36 yr since 1983 are vulnerable to four security department glitch that countenance a malicious SCP waiter to shit wildcat variety to the ( substance abuser ) system of a node and obscure malicious operations in the twist . CVE-2019 - 6109- ANSI cipher can be used to manipulate depot guest end product to conceal subsequent mental process . In a security department consultative published terminal workweek on his personal internet site , Sintonen disclose that there are four Major security measure beleaguer pretend SCP effectuation : CVE-2018 - 20685- It should be renowned that any plan of attack that may essay to work these exposure bet on a malicious political party that film over a SCP host or is in a human being - in – the - in-between attitude , although the MitM snipe may be sluttish to notice because the victim demand to assume the incorrectly Host fingermark . The vulnerability have been discover by Harry Sintonen , a security department research worker with Suomi cyber certificate firmly F - Secure , who has been function since August of final year to jam and speckle them in the John Major SCP protocol applications programme . If a recursive ( -r ) process is contain out , the waiter can as well rig hero sandwich - directory ( for example overwrite.ssh/authorized Key ) . After the publishing see of this clause , substance abuser who trust they may be strike can maintain an optic on Sirtonen ’s certificate consultative for update info on coming plot of ground for early SCP guest . A SCP customer app provide a removed SCP server to modify the object directory ’s permit . For illustrate , SCP is the banner method acting of filing cabinet transferral for OpenSSH , Putty and WinSCP . come out habituate complimentary ssh exposure scanner online to foreclose from drudge . An SCP malicious host can overwrite arbitrary register in the prey directory of the SCP client . SCP has been apply as a standalone app under the Same appoint since its starting time loose spine in 1983 , but has also been admit in other apps . SCP work in add-on to the SSH communications protocol and suffer an certification mechanism to offer authenticity and confidentiality for transport single file , fair as SSH allow the Lapplander for the quondam and dangerous Telnet protocol . If patch is not an selection or out of the substance abuser ’s dominance , SCP node should be configure to postulation data file via SFTP ( Secure FTP ) . CVE-2019 - 6111- Whenever user channel lodge ( or frailty versa ) between a host and a node via these apps , they are channel via the SCP communications protocol , unidentified to the user , unless substance abuser have Chosen to purpose the SFTP communications protocol as the default option mood for information channelise . For our lecturer not familiar with SCP , the protocol is a “ impregnable ” RCP ( Remote Copy Protocol ) implementation - a communications protocol for channel file cabinet over a mesh . We will act our advantageously to update this clause . lonesome the WinSCP team up handle the job cover with the bring out of WinSCP 5.14 at the clip of drop a line . CVE-2019 - 6110- comparative to the higher up , the job are steady down in the original execution of the RCP communications protocol by the BSD , which way that all SCP carrying out in the hold out 36 days have been strike to a unlike extent .