Home/CVE/Improper cryptographic implementation in Samsung Flow for Android prior to version 4.9.04 allows adjacent attackers to d
CVE

CVE-2023-21443

Improper cryptographic implementation in Samsung Flow for Android prior to version 4.9.04 allows adjacent attackers to d

Improper cryptographic implementation in Samsung Flow for Android prior to version 4.9.04 allows adjacent attackers to decrypt encrypted messages or inject commands.

HIGH · CVSS 7.5 EPSS 0.0006
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules3 YARA rules0
⬡

Weakness Classification

CWE-326Inadequate Encryption Strength
CWE-326Inadequate Encryption Strength
▤

Affected Products & Versions

1
samsung flow< 4.9.04
◈

Sigma Hunt Rules

3
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighAWS VPC Flow Logs Deleted
productmediumApplication Using Device Code Authentication Flow
productmediumApplications That Are Using ROPC Authentication Flow
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · mobile.security@samsung.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Feb 2023 · 07:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=02Vendor Advisory
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