peter/spectre-meltdown-checker
peter/spectre-meltdown-checker
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308 Commits

Author SHA1 Message Date
Stéphane Lesimple
3062a8416a fix(msg): add missing words 2018-05-22 00:10:08 +02:00
Stéphane Lesimple
6a4318addf feat(variant3a/4): initial support for 2 new CVEs 2018-05-22 00:06:56 +02:00
Stéphane Lesimple
c19986188f fix(variant2): adjust detection for SLES kernels 2018-05-19 09:53:12 +02:00
Rob Gill
7e4899bcb8 ibrs can't be enabled on no ibrs cpu (#195) 
* ibrs can't be enabled on no ibrs cpu

If the cpu is identified, and does not support SPEC_CTRL or IBRS, then ibrs can't be enabled, even if supported by the kernel.
Instead of reporting IBRS enabled and active UNKNOWN, report IBRS enabled and active NO.
 2018-05-17 15:39:48 +02:00
rrobgill
5cc77741af Update spectre-meltdown-checker.sh 2018-05-05 13:00:44 +02:00
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