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djm pushed a commit to branch master
in repository openssh.
commit ffe27e54a4bb18d5d3bbd3f4cc93a41b8d94dfd2
Author: djm@openbsd.org <djm@openbsd.org>
Date: Wed Oct 4 04:03:50 2023 +0000
upstream: add some cautionary text about % token expansion and
shell metacharacters; based on report from vinci AT protonmail.ch
OpenBSD-Commit-ID: aa1450a54fcee2f153ef70368d90edb1e7019113
---
ssh_config.5 | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/ssh_config.5 b/ssh_config.5
index 7f64c2cf..367305d2 100644
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -33,8 +33,8 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
-.\" $OpenBSD: ssh_config.5,v 1.386 2023/08/28 09:52:09 djm Exp $
-.Dd $Mdocdate: August 28 2023 $
+.\" $OpenBSD: ssh_config.5,v 1.387 2023/10/04 04:03:50 djm Exp $
+.Dd $Mdocdate: October 4 2023 $
.Dt SSH_CONFIG 5
.Os
.Sh NAME
@@ -2206,6 +2206,16 @@ accepts all tokens.
and
.Cm ProxyJump
accept the tokens %%, %h, %n, %p, and %r.
+.Pp
+Note that some of these directives build commands for execution via the shell.
+Because
+.Xr ssh 1
+performs no filtering or escaping of characters that have special meaning in
+shell commands (e.g. quotes), it is the user's reposibility to ensure that
+the arguments passed to
+.Xr ssh 1
+do not contain such characters and that tokens are appropriately quoted
+when used.
.Sh ENVIRONMENT VARIABLES
Arguments to some keywords can be expanded at runtime from environment
variables on the client by enclosing them in
--
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djm pushed a commit to branch master
in repository openssh.
commit ffe27e54a4bb18d5d3bbd3f4cc93a41b8d94dfd2
Author: djm@openbsd.org <djm@openbsd.org>
Date: Wed Oct 4 04:03:50 2023 +0000
upstream: add some cautionary text about % token expansion and
shell metacharacters; based on report from vinci AT protonmail.ch
OpenBSD-Commit-ID: aa1450a54fcee2f153ef70368d90edb1e7019113
---
ssh_config.5 | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/ssh_config.5 b/ssh_config.5
index 7f64c2cf..367305d2 100644
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -33,8 +33,8 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
-.\" $OpenBSD: ssh_config.5,v 1.386 2023/08/28 09:52:09 djm Exp $
-.Dd $Mdocdate: August 28 2023 $
+.\" $OpenBSD: ssh_config.5,v 1.387 2023/10/04 04:03:50 djm Exp $
+.Dd $Mdocdate: October 4 2023 $
.Dt SSH_CONFIG 5
.Os
.Sh NAME
@@ -2206,6 +2206,16 @@ accepts all tokens.
and
.Cm ProxyJump
accept the tokens %%, %h, %n, %p, and %r.
+.Pp
+Note that some of these directives build commands for execution via the shell.
+Because
+.Xr ssh 1
+performs no filtering or escaping of characters that have special meaning in
+shell commands (e.g. quotes), it is the user's reposibility to ensure that
+the arguments passed to
+.Xr ssh 1
+do not contain such characters and that tokens are appropriately quoted
+when used.
.Sh ENVIRONMENT VARIABLES
Arguments to some keywords can be expanded at runtime from environment
variables on the client by enclosing them in
--
To stop receiving notification emails like this one, please contact
djm@mindrot.org.
_______________________________________________
openssh-commits mailing list
openssh-commits@mindrot.org
https://lists.mindrot.org/mailman/listinfo/openssh-commits