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zdiSina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam)ZDI-24-098
HistoryFeb 08, 2024 - 12:00 a.m.

Schneider Electric Easergy Studio InitializeChannel Deserialization of Untrusted Data Local Privilege Escalation Vulnerability

2024-02-0800:00:00
Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam)
www.zerodayinitiative.com
5
schneider electric
easergy studio
privilege escalation
initializechannel method
deserialization vulnerability
local exploit

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.6 High

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0005 Low

EPSS

Percentile

16.1%

This vulnerability allows local attackers to escalate privileges on affected installations of Schneider Electric Easergy Studio. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the InitializeChannel method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.6 High

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0005 Low

EPSS

Percentile

16.1%

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