CVSS 6.5 · Medium EPSS 0,30%
Kerentanan Exposure of Sensitive Information to an Unauthorized Actor pada erlang/otp, erlang/ssh. Skor CVSS 3.1 6.5 (Medium) menurut NVD.
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Erlang OTP ssh (ssh_sftpd module) allows File Discovery. The SSH_FXP_READLINK handler in ssh_sftpd sends the raw result of file:read_link/2 to the client without calling chroot_filename/2 to strip the backend root prefix. An authenticated SFTP client can create a symlink inside the chroot pointing to /; ssh_sftpd resolves the target to the absolute backend root and stores it on disk. Reading the symlink back via SSH_FXP_READLINK returns that absolute path, for example /data/sftp, instead of the chrooted value /. The information disclosed is the absolute filesystem path of the SFTP root directory and of any symlink targets within it. No file contents, credentials, or access to paths outside the root directory are obtainable through this issue alone. This vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl. This issue affects OTP from OTP 17.0 before OTP 27.3.4.13, OTP 28.5.0.2, and OTP 29.0.2, corresponding to ssh from 3.0.1 before 5.2.11.8, 5.5.2.1, and 6.0.1. Whether OTP before OTP 17.0, corresponding to ssh before 3.0.1, is affected is unknown.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| erlang | erlang/otp | Versi 17.0 hingga sebelum 27.3.4.13 |
| erlang | erlang/otp | Versi 28.0 hingga sebelum 28.5.0.2 |
| erlang | erlang/otp | Versi 29.0 hingga sebelum 29.0.2 |
| erlang | erlang/ssh | Versi 3.0.1 hingga sebelum 5.2.11.8 |
| erlang | erlang/ssh | Versi 5.5 hingga sebelum 5.5.2.1 |
| erlang | erlang/ssh | Versi 6.0 hingga sebelum 6.0.1 |