It helps to prevent sandboxed processes to inject arbitrary commands
into the parent.
Signed-off-by: Petr Lautrbach <plaut...@redhat.com>
---
policycoreutils/sandbox/sandbox | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/policycoreutils/sandbox/sandbox b/policycoreutils/sandbox/sandbox
index 9cc13c2..07c340c 100644
--- a/policycoreutils/sandbox/sandbox
+++ b/policycoreutils/sandbox/sandbox
@@ -471,10 +471,15 @@ sandbox [-h] [-l level ] [-[X|M] [-H homedir] [-T
tempdir]] [-I includefile ] [-
cmds += ["--"] + self.__paths
return subprocess.Popen(cmds).wait()
- selinux.setexeccon(self.__execcon)
- rc = subprocess.Popen(self.__cmds).wait()
- selinux.setexeccon(None)
- return rc
+ pid = os.fork()
+ if pid == 0:
+ rc = os.setsid()
+ if rc:
+ return rc
+ selinux.setexeccon(self.__execcon)
+ os.execv(self.__cmds[0], self.__cmds)
+ rc = os.waitpid(pid, 0)
+ return os.WEXITSTATUS(rc[1])
finally:
for i in self.__paths:
--
2.9.3
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