* [ptxdist] [PATCHv2] dropbear: version bump 2014.65 -> 2015.67
@ 2015-02-20 9:51 Bruno Thomsen
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From: Bruno Thomsen @ 2015-02-20 9:51 UTC (permalink / raw)
To: ptxdist; +Cc: bth
The new version contain options to enable/disable cipher modes.
Default security level increased by disabling CBC mode and enabling CTR mode.
Tenable Network Security - Nessus:
http://www.tenable.com/plugins/index.php?view=single&id=70658
Signed-off-by: Bruno Thomsen <bth@kamstrup.com>
---
rules/dropbear.in | 15 +++++++++++++++
rules/dropbear.make | 18 ++++++++++++++++--
2 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/rules/dropbear.in b/rules/dropbear.in
index fe2ada3..1c1d813 100644
--- a/rules/dropbear.in
+++ b/rules/dropbear.in
@@ -203,6 +203,21 @@ config DROPBEAR_TWOFISH256
bijective f function made by four key-dependent
8x8-bit S-boxes.
+config DROPBEAR_CBC_CIPHERS
+ bool
+ prompt "CBC mode ciphers"
+ help
+ Enable CBC mode for ciphers. This has security issues though
+ is the most compatible with older SSH implementations.
+
+config DROPBEAR_CTR_CIPHERS
+ bool
+ prompt "Counter mode ciphers"
+ default y
+ help
+ Enable "Counter Mode" for ciphers. This is more secure than normal
+ CBC mode against certain attacks. This adds around 1kB to binary
+ size and is recommended for most cases.
comment "Integrity, at least one required --- RFC Draft requires sha1-hmac and recommends sha1-96"
diff --git a/rules/dropbear.make b/rules/dropbear.make
index f03d0fc..ab9da5d 100644
--- a/rules/dropbear.make
+++ b/rules/dropbear.make
@@ -18,8 +18,8 @@ PACKAGES-$(PTXCONF_DROPBEAR) += dropbear
#
# Paths and names
#
-DROPBEAR_VERSION := 2014.65
-DROPBEAR_MD5 := 1918604238817385a156840fa2c39490
+DROPBEAR_VERSION := 2015.67
+DROPBEAR_MD5 := e967e320344cd4bfebe321e3ab8514d6
DROPBEAR := dropbear-$(DROPBEAR_VERSION)
DROPBEAR_SUFFIX := tar.bz2
DROPBEAR_URL := http://matt.ucc.asn.au/dropbear/releases/$(DROPBEAR).$(DROPBEAR_SUFFIX)
@@ -163,7 +163,21 @@ else
@$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_TWOFISH128)
endif
+ifdef PTXCONF_DROPBEAR_CBC_CIPHERS
+ @echo "ptxdist: enabling cbc ciphers"
+ @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CBC_MODE)
+else
+ @echo "ptxdist: disabling cbc ciphers"
+ @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CBC_MODE)
+endif
+ifdef PTXCONF_DROPBEAR_CTR_CIPHERS
+ @echo "ptxdist: enabling ctr ciphers"
+ @$(call enable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CTR_MODE)
+else
+ @echo "ptxdist: disabling ctr ciphers"
+ @$(call disable_c, $(DROPBEAR_DIR)/options.h,DROPBEAR_ENABLE_CTR_MODE)
+endif
ifdef PTXCONF_DROPBEAR_SHA1
@echo "ptxdist: enabling sha1"
--
1.9.1
--
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