PUB-A-261085213

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Import Source
https://storage.googleapis.com/android-osv/PUB-A-261085213.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-261085213
Aliases
  • A-261085213
  • CVE-2023-21171
Published
2023-06-01T00:00:00Z
Modified
2024-08-29T07:13:13.899245Z
Summary
[ESS-CWE-208]- [WearOS] NCC-E005047-2RQ Input Event Verification via HMAC Comparison May Be Bypassed Due to Timing Side-Channel
Details

In verifyInputEvent of InputDispatcher.cpp, there is a possible way to conduct click fraud due to side channel information disclosure. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Android / platform/frameworks/native

Package

Name
platform/frameworks/native

Affected ranges

Type
ECOSYSTEM
Events
Introduced
13-next:0
Fixed
13-next:2023-06-01

Affected versions

Other

13-next

Ecosystem specific 

{
    "vanir_signatures": [
        {
            "match_only_versions": [
                "13-next"
            ],
            "digest": {
                "length": 839.0,
                "function_hash": "126951636093306267955210735427030098592"
            },
            "id": "PUB-A-261085213-0d5e7b25",
            "source": "https://android.googlesource.com/platform/frameworks/native/+/1573a67beda9ae3d940002dcf9150e10567a27fa",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "services/inputflinger/dispatcher/InputDispatcher.cpp",
                "function": "InputDispatcher::verifyInputEvent"
            },
            "signature_type": "Function"
        },
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "172975099552906943636645555090970561106",
                    "16129554178344397025188992391172521759",
                    "143453366243382552586464281014762439519",
                    "71350515929860112950938380677892398847",
                    "15858127591312972650174939353454411654",
                    "328697675169440540323019445779150509594",
                    "60900883573293013481713867900584301640",
                    "11227039276832198482627820593879788695"
                ]
            },
            "id": "PUB-A-261085213-86e90f99",
            "source": "https://android.googlesource.com/platform/frameworks/native/+/1573a67beda9ae3d940002dcf9150e10567a27fa",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "services/inputflinger/dispatcher/InputDispatcher.cpp"
            },
            "signature_type": "Line"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/platform/frameworks/native/+/1573a67beda9ae3d940002dcf9150e10567a27fa"
    ],
    "spl": "2023-06-01",
    "severity": "Moderate",
    "types": [
        "EoP"
    ]
}