Description
The default configuration of NCSA Telnet package for Macintosh and PC enables FTP, even though it does not include an "ftp=yes" line, which allows remote attackers to read and modify arbitrary files.
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 | telnet | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | telnet | No fix yet | — |
References
- ftp-ncsa(1844) vdb-entry
- CA-1991-15 third-party-advisory