What is the CVSS score of CVE-2018-4834?

CVE-2018-4834 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.3%.

Pxc12 22 36 E D Firmware CVE-2018-4834

CRITICAL

Missing Authentication for Critical Function (CWE-306)

2018-01-24 productcert@siemens.com

Authentication Bypass Pxc12 22 36 E D Firmware Pxc00 50 100 200 E D Firmware Pxc00 64 128 U Firmware Pxc001 E D Firmware Pxm20 E Firmware

9.8

CVSS 3.1 · Vendor: siemens

Severity by source

Vendor (siemens) PRIMARY

9.8 CRITICAL

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

Primary rating from Vendor (siemens) · only source for this CVE.

CVSS VectorVendor: siemens

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jan 24, 2018 - 16:29 cve.org

CRITICAL 9.8

DescriptionCVE.org

A vulnerability has been identified in Desigo PXC00-E.D V4.10 (All versions < V4.10.111), Desigo PXC00-E.D V5.00 (All versions < V5.0.171), Desigo PXC00-E.D V5.10 (All versions < V5.10.69), Desigo PXC00-E.D V6.00 (All versions < V6.0.204), Desigo PXC00/64/128-U V4.10 (All versions < V4.10.111 only with web module), Desigo PXC00/64/128-U V5.00 (All versions < V5.0.171 only with web module), Desigo PXC00/64/128-U V5.10 (All versions < V5.10.69 only with web module), Desigo PXC00/64/128-U V6.00 (All versions < V6.0.204 only with web module), Desigo PXC001-E.D V4.10 (All versions < V4.10.111), Desigo PXC001-E.D V5.00 (All versions < V5.0.171), Desigo PXC001-E.D V5.10 (All versions < V5.10.69), Desigo PXC001-E.D V6.00 (All versions < V6.0.204), Desigo PXC100-E.D V4.10 (All versions < V4.10.111), Desigo PXC100-E.D V5.00 (All versions < V5.0.171), Desigo PXC100-E.D V5.10 (All versions < V5.10.69), Desigo PXC100-E.D V6.00 (All versions < V6.0.204), Desigo PXC12-E.D V4.10 (All versions < V4.10.111), Desigo PXC12-E.D V5.00 (All versions < V5.0.171), Desigo PXC12-E.D V5.10 (All versions < V5.10.69), Desigo PXC12-E.D V6.00 (All versions < V6.0.204), Desigo PXC200-E.D V4.10 (All versions < V4.10.111), Desigo PXC200-E.D V5.00 (All versions < V5.0.171), Desigo PXC200-E.D V5.10 (All versions < V5.10.69), Desigo PXC200-E.D V6.00 (All versions < V6.0.204), Desigo PXC22-E.D V4.10 (All versions < V4.10.111), Desigo PXC22-E.D V5.00 (All versions < V5.0.171), Desigo PXC22-E.D V5.10 (All versions < V5.10.69), Desigo PXC22-E.D V6.00 (All versions < V6.0.204), Desigo PXC22.1-E.D V4.10 (All versions < V4.10.111), Desigo PXC22.1-E.D V5.00 (All versions < V5.0.171), Desigo PXC22.1-E.D V5.10 (All versions < V5.10.69), Desigo PXC22.1-E.D V6.00 (All versions < V6.0.204), Desigo PXC36.1-E.D V4.10 (All versions < V4.10.111), Desigo PXC36.1-E.D V5.00 (All versions < V5.0.171), Desigo PXC36.1-E.D V5.10 (All versions < V5.10.69), Desigo PXC36.1-E.D V6.00 (All versions < V6.0.204), Desigo PXC50-E.D V4.10 (All versions < V4.10.111), Desigo PXC50-E.D V5.00 (All versions < V5.0.171), Desigo PXC50-E.D V5.10 (All versions < V5.10.69), Desigo PXC50-E.D V6.00 (All versions < V6.0.204), Desigo PXM20-E V4.10 (All versions < V4.10.111), Desigo PXM20-E V5.00 (All versions < V5.0.171), Desigo PXM20-E V5.10 (All versions < V5.10.69), Desigo PXM20-E V6.00 (All versions < V6.0.204). A remote attacker with network access to the device could potentially upload a new firmware image to the devices without prior authentication.

AnalysisAI

A vulnerability has been identified in Desigo PXC00-E.D V4.10 (All versions < V4.10.111), Desigo PXC00-E.D V5.00 (All versions < V5.0.171), Desigo PXC00-E.D V5.10 (All versions < V5.10.69), Desigo. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. A vulnerability has been identified in Desigo PXC00-E.D V4.10 (All versions < V4.10.111), Desigo PXC00-E.D V5.00 (All versions < V5.0.171), Desigo PXC00-E.D V5.10 (All versions < V5.10.69), Desigo PXC00-E.D V6.00 (All versions < V6.0.204), Desigo PXC00/64/128-U V4.10 (All versions < V4.10.111 only with web module), Desigo PXC00/64/128-U V5.00 (All versions < V5.0.171 only with web module), Desigo PXC00/64/128-U V5.10 (All versions < V5.10.69 only with web module), Desigo PXC00/64/128-U V6.00 (All versions < V6.0.204 only with web module), Desigo PXC001-E.D V4.10 (All versions < V4.10.111), Desigo PXC001-E.D V5.00 (All versions < V5.0.171), Desigo PXC001-E.D V5.10 (All versions < V5.10.69), Desigo PXC001-E.D V6.00 (All versions < V6.0.204), Desigo PXC100-E.D V4.10 (All versions < V4.10.111), Desigo PXC100-E.D V5.00 (All versions < V5.0.171), Desigo PXC100-E.D V5.10 (All versions < V5.10.69), Desigo PXC100-E.D V6.00 (All versions < V6.0.204), Desigo PXC12-E.D V4.10 (All versions < V4.10.111), Desigo PXC12-E.D V5.00 (All versions < V5.0.171), Desigo PXC12-E.D V5.10 (All versions < V5.10.69), Desigo PXC12-E.D V6.00 (All versions < V6.0.204), Desigo PXC200-E.D V4.10 (All versions < V4.10.111), Desigo PXC200-E.D V5.00 (All versions < V5.0.171), Desigo PXC200-E.D V5.10 (All versions < V5.10.69), Desigo PXC200-E.D V6.00 (All versions < V6.0.204), Desigo PXC22-E.D V4.10 (All versions < V4.10.111), Desigo PXC22-E.D V5.00 (All versions < V5.0.171), Desigo PXC22-E.D V5.10 (All versions < V5.10.69), Desigo PXC22-E.D V6.00 (All versions < V6.0.204), Desigo PXC22.1-E.D V4.10 (All versions < V4.10.111), Desigo PXC22.1-E.D V5.00 (All versions < V5.0.171), Desigo PXC22.1-E.D V5.10 (All versions < V5.10.69), Desigo PXC22.1-E.D V6.00 (All versions < V6.0.204), Desigo PXC36.1-E.D V4.10 (All versions < V4.10.111), Desigo PXC36.1-E.D V5.00 (All versions < V5.0.171), Desigo PXC36.1-E.D V5.10 (All versions < V5.10.69), Desigo PXC36.1-E.D V6.00 (All versions < V6.0.204), Desigo PXC50-E.D V4.10 (All versions < V4.10.111), Desigo PXC50-E.D V5.00 (All versions < V5.0.171), Desigo PXC50-E.D V5.10 (All versions < V5.10.69), Desigo PXC50-E.D V6.00 (All versions < V6.0.204), Desigo PXM20-E V4.10 (All versions < V4.10.111), Desigo PXM20-E V5.00 (All versions < V5.0.171), Desigo PXM20-E V5.10 (All versions < V5.10.69), Desigo PXM20-E V6.00 (All versions < V6.0.204). A remote attacker with network access to the device could potentially upload a new firmware image to the devices without prior authentication. Affected products include: Siemens Pxc12\/22\/36-E.D Firmware, Siemens Pxc00\/50\/100\/200-E.D Firmware, Siemens Pxc00\/64\/128-U Firmware, Siemens Pxc001-E.D Firmware, Siemens Pxm20-E Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.