Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | tn5250 | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | tn5250 | No fix yet | — |