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Revert "config/security: Add HOME to default exec env var whitelist"

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There have been one report in the wild suggesting that this needs to be tested better before doing:

https://discourse.gohugo.io/t/hugo-mod-failing-in-v0-91-1-but-works-in-v0-91-0/36180/5

This reverts commit fca266ebbb.
This commit is contained in:
Bjørn Erik Pedersen
2021-12-23 12:46:04 +01:00
parent aee9e11a40
commit 623dda7174
3 changed files with 12 additions and 3 deletions
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6
config/security/securityConfig.go
View File

@@ -42,7 +42,7 @@ var DefaultConfig = Config{
),
// These have been tested to work with Hugo's external programs
// on Windows, Linux and MacOS.
OsEnv: NewWhitelist("(?i)^(PATH|PATHEXT|APPDATA|HOME|TMP|TEMP|TERM)$"),
OsEnv: NewWhitelist("(?i)^(PATH|PATHEXT|APPDATA|TMP|TEMP|TERM)$"),
},
Funcs: Funcs{
Getenv: NewWhitelist("^HUGO_"),
@@ -110,6 +110,7 @@ func (c Config) CheckAllowedExec(name string) error {
}
}
return nil
}
func (c Config) CheckAllowedGetEnv(name string) error {
@@ -158,6 +159,7 @@ func (c Config) ToSecurityMap() map[string]interface{} {
"security": m,
}
return sec
}
// DecodeConfig creates a privacy Config from a given Hugo configuration.
@@ -187,6 +189,7 @@ func DecodeConfig(cfg config.Provider) (Config, error) {
}
return sc, nil
}
func stringSliceToWhitelistHook() mapstructure.DecodeHookFuncType {
@@ -202,6 +205,7 @@ func stringSliceToWhitelistHook() mapstructure.DecodeHookFuncType {
wl := types.ToStringSlicePreserveString(data)
return NewWhitelist(wl...), nil
}
}

7
config/security/securityonfig_test.go
View File

@@ -53,6 +53,7 @@ getEnv=["a", "b"]
c.Assert(pc.Exec.OsEnv.Accept("e"), qt.IsFalse)
c.Assert(pc.Funcs.Getenv.Accept("a"), qt.IsTrue)
c.Assert(pc.Funcs.Getenv.Accept("c"), qt.IsFalse)
})
c.Run("String whitelist", func(c *qt.C) {
@@ -79,6 +80,7 @@ osEnv="b"
c.Assert(pc.Exec.Allow.Accept("d"), qt.IsFalse)
c.Assert(pc.Exec.OsEnv.Accept("b"), qt.IsTrue)
c.Assert(pc.Exec.OsEnv.Accept("e"), qt.IsFalse)
})
c.Run("Default exec.osEnv", func(c *qt.C) {
@@ -103,6 +105,7 @@ allow="a"
c.Assert(pc.Exec.Allow.Accept("a"), qt.IsTrue)
c.Assert(pc.Exec.OsEnv.Accept("PATH"), qt.IsTrue)
c.Assert(pc.Exec.OsEnv.Accept("e"), qt.IsFalse)
})
c.Run("Enable inline shortcodes, legacy", func(c *qt.C) {
@@ -126,7 +129,9 @@ osEnv="b"
pc, err := DecodeConfig(cfg)
c.Assert(err, qt.IsNil)
c.Assert(pc.EnableInlineShortcodes, qt.IsTrue)
})
}
func TestToTOML(t *testing.T) {
@@ -135,7 +140,7 @@ func TestToTOML(t *testing.T) {
got := DefaultConfig.ToTOML()
c.Assert(got, qt.Equals,
"[security]\n enableInlineShortcodes = false\n [security.exec]\n allow = ['^dart-sass-embedded$', '^go$', '^npx$', '^postcss$']\n osEnv = ['(?i)^(PATH|PATHEXT|APPDATA|HOME|TMP|TEMP|TERM)$']\n\n [security.funcs]\n getenv = ['^HUGO_']\n\n [security.http]\n methods = ['(?i)GET|POST']\n urls = ['.*']",
"[security]\n enableInlineShortcodes = false\n [security.exec]\n allow = ['^dart-sass-embedded$', '^go$', '^npx$', '^postcss$']\n osEnv = ['(?i)^(PATH|PATHEXT|APPDATA|TMP|TEMP|TERM)$']\n\n [security.funcs]\n getenv = ['^HUGO_']\n\n [security.http]\n methods = ['(?i)GET|POST']\n urls = ['.*']",
)
}