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01 Record

CVE-2023-36483

MAS (a Carrier brand) MASmobile Classic Authorization Bypass

MediumPUBLISHEDCNA: Carrier
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

02 Description

MAS (a Carrier brand) MASmobile Classic Authorization Bypass

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.49% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 41.9% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-03-16 00:00Z2 YR AGO
Last updated
2024-08-28 16:23Z2 YR AGO
Reserved
2023-06-22
Assigning CNA
Carrier
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-639Authorization Bypass Through User-Controlled KeyBase
Data version
5.1
Document digest
fde8bd08feda3a298111c812abd10436c526864cffcf0aa6043196ac5bc017ce

05 Affected products

VendorProductVersionsPlatforms
MAS (a Carrier brand)MASmobile Classic1 to 1.16.18, 1 to 1.7.24Android, iOS
MAS (a Carrier brand)MAS ASP.Net Services1 to 1.9—
carriermasmobile_classic1 to 1.16.18, 1 to 1.7.24—
carriermas_asp.net_services1 to 1.9—

06 References

07 Remediation

1. Uninstall MASmobile Classic Services - These services are installed and configured manually in IIS within a virtual directory. To uninstall, unpublish the services in IIS and remove the service files. All versions (v1.7, 1.8, and 1.9) were discontinued. 2. Remove the MASmobile Classic app from Android and iOS devices. All versions (v1.x.x) were discontinued and no longer available in the app stores (Play and AppStore). 3. Contact MAS to arrange the installation of MASterMind EX Services (v6.46 or later). These services do not run under IIS and must be configured in coordination with the customer. 4. Install MASmobile app from Play or AppStore (v2.x.x). This is not an upgrade to MASmobile Classic; it is a different app.