CVE-2005-0868
HighSummary
Vulnerability in AS/400 Telnet 5250 terminal emulation clients (IBM Client Access, Bosanova, PowerTerm, Mochasoft, and others) allows malicious AS/400 servers to execute arbitrary commands on the client workstation. The attack uses a STRPCO (Start PC Organizer) command followed by STRPCCMD (Start PC Command), e.g., to create a backdoor account via REXEC.
Risk Assessment
The organization risks client workstations being compromised when connecting to an untrusted AS/400 server, potentially leading to data theft, malware installation, or lateral movement within the internal network.
Recommendation
Update the client software to a patched version or configure firewalls to block unauthorized Telnet 5250 connections from trusted AS/400 servers.
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Original NVD description (English source)
AS/400 Telnet 5250 terminal emulation clients, as implemented by (1) IBM client access, (2) Bosanova, (3) PowerTerm, (4) Mochasoft, and possibly other emulations, allows malicious AS/400 servers to execute arbitrary commands via a STRPCO (Start PC Organizer) command followed by STRPCCMD (Start PC command), as demonstrated by creating a backdoor account using REXEC.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS