CPU on Intel/AMD/ARM Speculative Execution Spectre information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

A vulnerability was found in CPU on Intel/AMD/ARM (Chip Software). It has been classified as critical. This affects some unknown processing of the component Speculative Execution. The manipulation with an unknown input leads to a information disclosure vulnerability (Spectre). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.

The bug was discovered 01/03/2018. The weakness was disclosed 01/03/2018 by Jann Horn, Paul Kocher, Daniel Genkin, Mike Hamburg, Moritz Lipp and Yuval Yarom as confirmed blog post (Website). It is possible to read the advisory at googleprojectzero.blogspot.com. The vendor was not involved in the public release. This vulnerability is uniquely identified as CVE-2017-5715 since 02/01/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/20/2023). The attack technique deployed by this issue is T1592 according to MITRE ATT&CK. Due to its background and reception, this vulnerability has a historic impact.

A public exploit has been developed in Javascript and been published immediately after the advisory. The exploit is shared for download at googleprojectzero.blogspot.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 8403 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 105536 (Scientific Linux Security Update : microcode_ctl on SL6.x i386/x86_64 (Spectre)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Scientific Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171540 (OpenSUSE Security Update for kbuild, virtualbox (openSUSE-SU-2018:2524-1)).

It is possible to mitigate the problem by applying the configuration setting . A possible mitigation has been published immediately after the disclosure of the vulnerability. The blog post contains the following remark:

Since this exploit can be executed through the website, Chrome users can turn on Site Isolation feature on their devices to mitigate these flaws.

The vulnerability is also documented in the databases at Tenable (105536) and Exploit-DB (43427). Further details are available at spectreattack.com. The entries 111325, 111326, 112151 and 112181 are pretty similar.

Affected

  • AMD CPU
  • ARM CPU
  • Intel CPU
  • Apple macOS up to 10.13.2
  • Microsoft Windows
  • Google Android
  • Linux Kernel

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.6
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Name: Spectre
Class: Information disclosure / Spectre
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 105536
Nessus Name: Scientific Linux Security Update : microcode_ctl on SL6.x i386/x86_64 (Spectre)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 862230
OpenVAS Name: SuSE Update for qemu openSUSE-SU-2018:0059-1 (qemu)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Config
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Exploit Delay Time: 🔍
Suricata ID: 2025196
Suricata Class: 🔍
Suricata Message: 🔍

Timelineinfo

01/01/1995 🔍
02/01/2017 +8067 days 🔍
01/03/2018 +336 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/04/2018 +1 days 🔍
01/04/2018 +0 days 🔍
01/04/2018 +0 days 🔍
01/05/2018 +1 days 🔍
04/13/2018 +98 days 🔍
01/20/2023 +1743 days 🔍

Sourcesinfo

Advisory: RHSA-2018:0292
Researcher: Jann Horn, Paul Kocher, Daniel Genkin, Mike Hamburg, Moritz Lipp, Yuval Yarom
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-5715 (🔍)
OVAL: 🔍

SecurityTracker: 1040071
SecurityFocus: 103774 - Linux Kernel CVE-2018-10087 Local Denial of Service Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 01/05/2018 08:40
Updated: 01/20/2023 09:15
Changes: 01/05/2018 08:40 (85), 12/28/2019 08:08 (21), 01/20/2023 09:15 (4)
Complete: 🔍

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