rrobgill
1c0f6d9580
cpuid and msr module check
...
This adds a check before loading the cpuid and msr modules under linux, ensuring they are not unloaded in exit_cleanup() if they were initially present.
2018-05-05 13:00:44 +02:00
Onno Zweers
4acd0f647a
Suggestion to change VM to a CPU with IBRS capability
2018-04-20 20:35:12 +02:00
Stéphane Lesimple
fb52dbe7bf
set master branch to v0.37+
2018-04-20 20:34:42 +02:00
Stéphane Lesimple
edebe4dcd4
bump to v0.37
2018-04-18 23:51:45 +02:00
Stéphane Lesimple
83ea78f523
fix: arm: also detect variant 1 mitigation when using native objdump
2018-04-17 18:50:32 +02:00
Stéphane Lesimple
602b68d493
fix(spectrev2): explain that retpoline is possible for Skylake+ if there is RSB filling, even if IBRS is still better
2018-04-16 09:27:28 +02:00
Stéphane Lesimple
97bccaa0d7
feat: rephrase IBPB warning when only retpoline is enabled in non-paranoid mode
2018-04-16 09:13:25 +02:00
Stéphane Lesimple
68e619b0d3
feat: show RSB filling capability for non-Skylake in verbose mode
2018-04-16 09:08:25 +02:00
Stéphane Lesimple
a6f4475cee
feat: make IBRS_FW blue instead of green
2018-04-16 09:07:54 +02:00
Stéphane Lesimple
223f5028df
feat: add --paranoid to choose whether we require IBPB
2018-04-15 23:05:30 +02:00
Stéphane Lesimple
c0108b9690
fix(spectre2): don't explain how to fix when NOT VULNERABLE
2018-04-15 20:55:55 +02:00
Stéphane Lesimple
a3016134bd
feat: make RSB filling support mandatory for Skylake+ CPUs
2018-04-15 20:55:31 +02:00
Stéphane Lesimple
59d85b39c9
feat: detect RSB filling capability in the kernel
2018-04-15 20:55:01 +02:00
Stéphane Lesimple
baaefb0c31
fix: remove shellcheck warnings
2018-04-11 22:24:03 +02:00
Igor Lubashev
d452aca03a
fix: invalid bash syntax when ibpb_enabled or ibrs_enabled are empty
2018-04-11 10:29:42 +02:00
Stéphane Lesimple
10b8d94724
feat: detect latest Red Hat kernels' RO ibpb_enabled knob
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
8606e60ef7
refactor: no longer display the retoline-aware compiler test when we can't tell for sure
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
6a48251647
fix: regression in 51aeae25, when retpoline & ibpb are enabled
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
f4bf5e95ec
fix: typos
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
60eac1ad43
feat: also do PTI performance check with (inv)pcid for BSD
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
b3cc06a6ad
fix regression introduced by 82c25dc
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
5553576e31
feat(amd/zen): re-introduce IBRS for AMD except ZEN family
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
e16ad802da
feat(ibpb=2): add detection of SMT before concluding the system is not vulnerable
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
29c294edff
feat(bsd): explain how to mitigate variant2
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
59714011db
refactor: IBRS_ALL & RDCL_NO are Intel-only
2018-04-10 22:51:45 +02:00
Stéphane Lesimple
51e8261a32
refactor: separate hw checks for Intel & AMD
2018-04-10 22:49:28 +02:00
Stéphane Lesimple
2a4bfad835
refactor: add is_amd and is_intel funcs
2018-04-10 22:49:28 +02:00
Stéphane Lesimple
7e52cea66e
feat(spectre2): refined how status of this vuln is decided and more precise explanations on how to fix
2018-04-10 22:49:28 +02:00
Benjamin Bouvier
417d7aab91
Fix trailing whitespace and mixed indent styles;
2018-04-10 22:42:47 +02:00
Sylvestre Ledru
67bf761029
Fix some user facing typos with codespell -w -q3 .
2018-04-08 18:44:13 +02:00
Stéphane Lesimple
0eabd266ad
refactor: decrease default verbosity for some tests
2018-04-05 22:20:16 +02:00
Stéphane Lesimple
b77fb0f226
fix: don't override ibrs/ibpb results with later tests
2018-04-05 22:04:20 +02:00
Stéphane Lesimple
89c2e0fb21
fix(amd): show cpuinfo and ucode details
2018-04-05 21:39:27 +02:00
Stéphane Lesimple
b88f32ed95
feat: print raw cpuid, and fetch ucode version under BSD
2018-04-05 00:07:12 +02:00
Stéphane Lesimple
7a4ebe8009
refactor: rewrite read_cpuid to get more common code parts between BSD and Linux
2018-04-05 00:06:24 +02:00
Stéphane Lesimple
0919f5c236
feat: add explanations of what to do when a vulnerability is not mitigated
2018-04-05 00:03:04 +02:00
Stéphane Lesimple
de02dad909
feat: rework Spectre V2 mitigations detection w/ latest vanilla & Red Hat 7 kernels
2018-04-05 00:01:54 +02:00
Stéphane Lesimple
07484d0ea7
add dump of variables at end of script in debug mode
2018-04-04 23:58:15 +02:00
Stéphane Lesimple
a8b557b9e2
fix(cpu): skip CPU checks if asked to (--no-hw) or if inspecting a kernel of another architecture
2018-04-03 19:36:28 +02:00
Stéphane Lesimple
619b2749d8
fix(sysfs): only check for sysfs for spectre2 when in live mode
2018-04-03 19:32:36 +02:00
Stéphane Lesimple
056ed00baa
feat(arm): detect spectre variant 1 mitigation
2018-04-03 15:52:25 +02:00
Stéphane Lesimple
aef99d20f3
fix(pti): when PTI activation is unknown, don't say we're vulnerable
2018-04-03 12:45:17 +02:00
Stéphane Lesimple
e2d7ed2243
feat(arm): support for variant2 and meltdown mitigation detection
2018-04-01 17:50:18 +02:00
Stéphane Lesimple
eeaeff8ec3
set version to v0.36+ for master branch between releases
2018-04-01 17:45:01 +02:00
Stéphane Lesimple
f5269a362a
feat(bsd): add retpoline detection for BSD
2018-04-01 17:42:29 +02:00
Stéphane Lesimple
f3883a37a0
fix(xen): adjust message for DomUs w/ sysfs
2018-03-31 13:44:04 +02:00
Stéphane Lesimple
b6fd69a022
release: v0.36
2018-03-27 23:08:38 +02:00
Stéphane Lesimple
7adb7661f3
enh: change colors and use red only to report vulnerability
2018-03-25 18:15:08 +02:00
Stéphane Lesimple
aa74315df4
feat: speed up kernel version detection
2018-03-25 13:42:19 +02:00
Stéphane Lesimple
0b8a09ec70
fix: mis adjustments for BSD compat
2018-03-25 13:26:00 +02:00
Stéphane Lesimple
b42d8f2f27
fix(write_msr): use /dev/zero instead of manually echoing zeroes
2018-03-25 12:53:50 +02:00
Stéphane Lesimple
f191ec7884
feat: add --hw-only to only show CPU microcode/cpuid/msr details
2018-03-25 12:48:37 +02:00
Stéphane Lesimple
28da7a0103
misc: message clarifications
2018-03-25 12:48:03 +02:00
Stéphane Lesimple
ece25b98a1
feat: implement support for NetBSD/FreeBSD/DragonFlyBSD
2018-03-25 12:28:02 +02:00
Stéphane Lesimple
889172dbb1
feat: add special extract_vmlinux mode for old RHEL kernels
2018-03-25 11:55:44 +02:00
Stéphane Lesimple
37ce032888
fix: bypass MSR/CPUID checks for non-x86 CPUs
2018-03-25 11:55:44 +02:00
Stéphane Lesimple
701cf882ad
feat: more robust validation of extracted kernel image
2018-03-25 11:55:44 +02:00
Stéphane Lesimple
6a94c3f158
feat(extract_vmlinux): look for ELF magic in decompressed blob and cut at found offset
2018-03-25 11:55:42 +02:00
Stéphane Lesimple
2d993812ab
feat: add --prefix-arch for cross-arch kernel inspection
2018-03-25 11:55:10 +02:00
Stéphane Lesimple
4961f8327f
fix(ucode): fix blacklist detection for some ucode versions
2018-03-19 12:09:39 +01:00
Alex
ecdc448531
Check MSR in each CPU/Thread ( #136 )
2018-03-17 17:17:15 +01:00
Stéphane Lesimple
12ea49fe0c
fix(kvm): properly detect PVHVM mode ( fixes #163 )
2018-03-16 18:29:58 +01:00
Stéphane Lesimple
053f1613de
fix(doc): use https:// URLs in the script comment header
2018-03-16 18:24:59 +01:00
Stéphane Lesimple
bda18d04a0
fix: pine64: re-add vmlinuz location and some error checks
2018-03-10 16:02:44 +01:00
Stéphane Lesimple
d5832dc1dc
feat: add ELF magic detection on kernel image blob for some arm64 systems
2018-03-10 14:57:25 +01:00
Stéphane Lesimple
d2f46740e9
feat: enhance kernel image version detection for some old kernels
2018-03-10 14:57:25 +01:00
Sam Morris
2f6a6554a2
Produce output for consumption by prometheus-node-exporter
...
A report of all vulnerable machines to be produced with a query such as:
spexec_vuln_status{status!="OK"}
2018-02-27 11:08:39 +01:00
Stéphane Lesimple
30842dd9c0
release: bump to v0.35
2018-02-16 10:35:49 +01:00
Stéphane Lesimple
b4ac5fcbe3
feat(variant2): better explanation when kernel supports IBRS but CPU does not
2018-02-16 10:34:01 +01:00
Stéphane Lesimple
55a6fd3911
feat(variant1): better detection for Red Hat/Ubuntu patch
2018-02-15 21:19:49 +01:00
Sylvestre Ledru
35c8a63de6
Remove the color in the title
2018-02-15 20:21:00 +01:00
Stéphane Lesimple
5f914e555e
fix(xen): declare Xen's PTI patch as a valid mitigation for variant3
2018-02-14 14:24:55 +01:00
Stéphane Lesimple
66dce2c158
fix(ucode): update blacklisted ucodes list from latest Intel info
2018-02-14 14:14:16 +01:00
Calvin Walton
155cac2102
Teach checker how to find kernels installed by systemd kernel-install
2018-02-10 20:51:33 +01:00
Stéphane Lesimple
22cae605e1
fix(retpoline): remove the "retpoline enabled" test
...
This test worked for some early versions of the retpoline
implementation in vanilla kernels, but the corresponding
flag has been removed from /proc/cpuinfo in latest kernels.
The full information is available in /sys instead, which
was already implemented in the script.
2018-02-09 20:12:33 +01:00
Stéphane Lesimple
eb75e51975
fix(ucode): update list of blacklisted ucodes from 2018-02-08 Intel document
...
Removed 2 ucodes and added 2 other ones
2018-02-09 19:56:27 +01:00
積丹尼 Dan Jacobson
253e180807
Update spectre-meltdown-checker.sh
...
Dots better than colon for indicating waiting.
2018-02-06 19:02:56 +01:00
Stéphane Lesimple
5d6102a00e
enh: show kernel version in offline mode
2018-02-02 11:27:04 +01:00
Stéphane Lesimple
a2dfca671e
feat: detect disrepancy between found kernel image and running kernel
2018-02-02 11:13:54 +01:00
Stéphane Lesimple
36bd80d75f
enh: speedup by not decompressing kernel on --sysfs-only
2018-02-02 11:13:31 +01:00
Stéphane Lesimple
1834dd6201
feat: add skylake era cpu detection routine
2018-02-02 11:12:10 +01:00
Stéphane Lesimple
3d765bc703
enh: lazy loading of cpu informations
2018-02-02 11:11:51 +01:00
Stéphane Lesimple
07afd95b63
feat: better cleanup routine on exit & interrupt
2018-02-02 11:09:36 +01:00
Stéphane Lesimple
b7a10126d1
fix: ARM CPU display name & detection
...
Fix ARM CPU display name, and properly
detect known vulnerable ARM CPUs when
multiple different model cores are
present (mostly Android phones)
2018-02-02 11:00:23 +01:00
Stéphane Lesimple
6346a0deaa
fix: --no-color workaround for android's sed
2018-02-02 10:59:49 +01:00
Stéphane Lesimple
8106f91981
release: bump to v0.34
2018-01-31 16:28:54 +01:00
Stéphane Lesimple
b1fdf88f28
enh: display ucode info even when not blacklisted
2018-01-31 16:21:32 +01:00
Stéphane Lesimple
4d29607630
cleanup: shellcheck pass
2018-01-31 16:15:20 +01:00
Stéphane Lesimple
0267659adc
cleanup: remove superseded atom detection code
...
This is now handled properly by checking the CPU
vendor, family, model instead of looking for the
commercial name of the CPU in /proc/cpuinfo
2018-01-31 16:15:20 +01:00
Stéphane Lesimple
247b176882
feat: detect known speculative-execution free CPUs
...
Based on a kernel patch that has been merged to Linus' tree.
Some of the detections we did by grepping the model name
will probably no longer be needed.
2018-01-31 16:15:20 +01:00
Stéphane Lesimple
bcae8824ec
refacto: create a dedicated func to read cpuid bits
2018-01-31 16:15:20 +01:00
Stéphane Lesimple
71e7109c22
refacto: move cpu discovery bits to a dedicated function
2018-01-31 16:15:20 +01:00
Stéphane Lesimple
aa18b51e1c
fix(variant1): smarter lfence check
...
Instead of just counting the number of LFENCE
instructions, now we're only counting the those
that directly follow a jump instruction.
2018-01-31 14:34:54 +01:00
Stéphane Lesimple
b738ac4bd7
fix: regression introduced by previous commit
...
449: ./spectre-meltdown-checker.sh: 3: parameter not set
This happened only on blacklisted microcodes, fixed by
adding set +u before the return
2018-01-31 12:13:50 +01:00
Stéphane Lesimple
799ce3eb30
update blacklisted ucode list from kernel source
2018-01-31 11:26:23 +01:00
Stéphane Lesimple
f1e18c136f
doc(disclaimer): Spectre affects all software
...
Add a paragraph in the disclaimer stating that this tool focuses
on the kernel side of things, and that for Spectre, any software
might be vulnerable.
2018-01-30 14:37:52 +01:00
Stéphane Lesimple
e05ec5c85f
feat(variant1): detect vanilla mitigation
...
Implement detection of mitigation for Variant 1 that is
being pushed on vanilla kernel.
Current name of the patch:
"spectre variant1 mitigations for tip/x86/pti" (v6)
Also detect some distros that already backported this
patch without modifying the vulnerabilities sysfs hierarchy.
This detection is more reliable than the LFENCE one, trust
it and skip the LFENCE heuristic if a match is found.
2018-01-30 12:55:34 +01:00
Stéphane Lesimple
6e544d6055
fix(cpu): Pentium Exxxx are vulnerable to Meltdown
2018-01-29 11:18:15 +01:00
Stéphane Lesimple
90a65965ff
adjust: show how to enable IBRS/IBPB in -v only
2018-01-29 11:06:15 +01:00
Stéphane Lesimple
9b53635eda
refacto: fix shellcheck warnings for better compat
...
Now `shellcheck -s sh` no longer shows any warnings.
This should improve compatibility with exotic shells
as long as they're POSIX compliant.
2018-01-29 10:34:08 +01:00
