Spoofing attack in WinSCP - CVE-2019-6110

Vulnerability identifier: #VU16989

CSH Severity: Low

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-6110

CWE-ID: CWE-451

Exploitation vector: Remote access

Exploit availability: Public exploit is available

The vulnerability allows a remote attacker to conduct spoofing attack on the target system.

The weakness exists due to missing character encoding in the progress display by the scp client. A malicious SCP server can use the object name to manipulate the client output, for example to employ ANSI codes to hide additional files being transferred.

WinSCP
Gentoo Linux
Opensuse
Security Event Manager (SEM)
Dell EMC Unity VSA Operating Environment (OE)
Dell EMC Unity Operating Environment (OE)

Update to version 5.14.

WinSCP - update to 5.14
Security Event Manager (SEM) - update to 2024.2
Dell EMC Unity VSA Operating Environment (OE) - update to 5.0.0.0.5.116
Dell EMC Unity Operating Environment (OE) - update to 5.0.0.0.5.116

• Exploit #6030 - OpenSSH SCP Client - Write Arbitrary Files (June 17, 2021)
• Exploit #6040 - SCP Client - Multiple Vulnerabilities (SSHtranger Things) (June 17, 2021)

• https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt

• Multiple vulnerabilities in SCP implementation in WinSCP
• OpenSUSE Linux update for openssh
• OpenSUSE Linux update for openssh
• Gentoo update for OpenSSH
• Multiple vulnerabilities in Dell EMC Unity Family
• SolarWinds Security Event Manager (SEM) update for third-party components