CVE-2018-20684

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Source

https://nvd.nist.gov/vuln/detail/CVE-2018-20684

Import Source

https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20684.json

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2018-20684

Published

2019-01-10T21:29:00Z

Modified

2025-10-15T09:32:43.590338Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator

Summary

[none]

Details

In WinSCP before 5.14 beta, due to missing validation, the scp implementation would accept arbitrary files sent by the server, potentially overwriting unrelated files. This affects TSCPFileSystem::SCPSink in core/ScpFileSystem.cpp.

References

Affected packages

Git / github.com/winscp/winscp

Affected ranges

Type: GIT
Repo: https://github.com/winscp/winscp
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54

Affected versions

5.*

5.10

5.10.1

5.10.2

5.10.3

5.10.4

5.11

5.11.1

5.11.2

5.11.3

5.12

5.12.1

5.12.2

5.13

5.13.1

5.13.2

5.13.3

5.13.4

5.7.6

5.7.7

5.8

5.8.1

5.8.2

5.8.3

5.8.4

5.9

5.9.1

5.9.2

5.9.3

5.9.4

5.9.5

5.9.6

Database specific

vanir_signatures

[
    {
        "source": "https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "190059343526321250718249722846150668288",
                "265185899346947669849958001449947920961",
                "207441580209763168162942788988296410514",
                "96551852497919177171655564292665931904"
            ]
        },
        "target": {
            "file": "source/core/ScpFileSystem.cpp"
        },
        "id": "CVE-2018-20684-7e525f07"
    },
    {
        "source": "https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "digest": {
            "function_hash": "94415055861517891977301272192252666951",
            "length": 7337.0
        },
        "target": {
            "file": "source/core/ScpFileSystem.cpp",
            "function": "TSCPFileSystem::SCPSink"
        },
        "id": "CVE-2018-20684-8f05019a"
    }
]