Smart Switch PC: Improper Validation of Integrity Check Value
CVE-2022-39844 is a high-severity improper validation of integrity check value vulnerability in Smart Switch PC from Samsung, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 4.3.22083 as the first without the flaw, so updating Smart Switch PC to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.16% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Smart Switch PC to 4.3.22083 or a later version.
- Read the advisory on security.samsungmobile.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Samsung Mobile | Smart Switch PC | before 4.3.22083 | 4.3.22083 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.5 | Medium | CNA (samsung.com) |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
Improper validation of integrity check vulnerability in Smart Switch PC prior to version 4.3.22083 allows local attackers to delete arbitrary directory using directory junction.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Validation of Integrity Check Value
The product does not validate or incorrectly validates the integrity check values or checksums of a message.
How developers prevent this class of flaw
- The protocol specification describes the algorithm used for calculating the checksum. It is then a matter of implementing the calculation and verifying that the calculated checksum and the received checksum match.
More Improper Validation of Integrity Check Value vulnerabilities (CWE-354)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Recent Improper Validation of Integrity Check Value vulnerabilities
- 7.1 High severity
- 7.3 High severity
- 7.5 High severity
- 9.0 High severity
- 8.8 High severity
- 7.5 High severity
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