Siemens SIMATIC Spectre-NG Variants 3a and 4 (CVE-2018-3639)

medium Tenable OT Security Plugin ID 500248

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.

This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: Medium

ID: 500248

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 4/22/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2018-3639

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:siemens:simatic_et_200_sp_firmware, cpe:/o:siemens:simatic_s7-1500_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/22/2018

Vulnerability Publication Date: 5/22/2018

Reference Information

CVE: CVE-2018-3639

CWE: 203

CERT: TA18-141A

DSA: DSA-4210, DSA-4273

RHSA: RHSA-2018:1629, RHSA-2018:1630, RHSA-2018:1632, RHSA-2018:1633, RHSA-2018:1635, RHSA-2018:1636, RHSA-2018:1637, RHSA-2018:1638, RHSA-2018:1639, RHSA-2018:1640, RHSA-2018:1641, RHSA-2018:1642, RHSA-2018:1643, RHSA-2018:1644, RHSA-2018:1645, RHSA-2018:1646, RHSA-2018:1647, RHSA-2018:1648, RHSA-2018:1649, RHSA-2018:1650, RHSA-2018:1651, RHSA-2018:1652, RHSA-2018:1653, RHSA-2018:1654, RHSA-2018:1655, RHSA-2018:1656, RHSA-2018:1657, RHSA-2018:1658, RHSA-2018:1659, RHSA-2018:1660, RHSA-2018:1661, RHSA-2018:1662, RHSA-2018:1663, RHSA-2018:1664, RHSA-2018:1665, RHSA-2018:1666, RHSA-2018:1667, RHSA-2018:1668, RHSA-2018:1669, RHSA-2018:1674, RHSA-2018:1675, RHSA-2018:1676, RHSA-2018:1686, RHSA-2018:1688, RHSA-2018:1689, RHSA-2018:1690, RHSA-2018:1696, RHSA-2018:1710, RHSA-2018:1711, RHSA-2018:1737, RHSA-2018:1738, RHSA-2018:1826, RHSA-2018:1854, RHSA-2018:1965, RHSA-2018:1967, RHSA-2018:1997, RHSA-2018:2001, RHSA-2018:2003, RHSA-2018:2006, RHSA-2018:2060, RHSA-2018:2161, RHSA-2018:2162, RHSA-2018:2164, RHSA-2018:2171, RHSA-2018:2172, RHSA-2018:2216, RHSA-2018:2228, RHSA-2018:2246, RHSA-2018:2250, RHSA-2018:2258, RHSA-2018:2289, RHSA-2018:2309, RHSA-2018:2328, RHSA-2018:2363, RHSA-2018:2364, RHSA-2018:2387, RHSA-2018:2394, RHSA-2018:2396, RHSA-2018:2948, RHSA-2018:3396, RHSA-2018:3397, RHSA-2018:3398, RHSA-2018:3399, RHSA-2018:3400, RHSA-2018:3401, RHSA-2018:3402, RHSA-2018:3407, RHSA-2018:3423, RHSA-2018:3424, RHSA-2018:3425, RHSA-2019:0148, RHSA-2019:1046

SuSE: openSUSE-SU-2019:1438, openSUSE-SU-2019:1439, openSUSE-SU-2020:1325

USN: USN-3651-1, USN-3652-1, USN-3653-1, USN-3653-2, USN-3654-1, USN-3654-2, USN-3655-1, USN-3655-2, USN-3679-1, USN-3680-1, USN-3756-1, USN-3777-3

Detections

Analytics