CVE-2023-3098Public exploit

Local arbitrary file write via path traversal

Published Jun 5, 2023 · Updated Aug 2, 2024

Path traversal in KylinSoft Kylin Assistant before 3.0.2-0kylin6k70-23 allows local users to write files outside the intended directory. The restore_all_sound_file function incorporates an attacker-controlled source directory into a privileged copy command without rejecting ../ traversal sequences. Local low-privileged access is required, and the published proof creates an attacker-chosen file under /etc.

CVSS severity7.8
High
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in KylinSoft Kylin Assistant before 3.0.2-0kylin6k70-23 allows local users to write files outside the intended directory. The restore_all_sound_file function incorporates an attacker-controlled source directory into a privileged copy command without rejecting ../ traversal sequences. Local low-privileged access is required, and the published proof creates an attacker-chosen file under /etc.

The record

CVE
CVE-2023-3098
Published
Jun 5, 2023
Updated
Aug 2, 2024
Vendor
Kylinsoft Co., Ltd.
Product
Kylin Assistant
Classifications
CWE-24, CWE-22, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Kylinsoft Co., Ltd. · Kylin Assistantversion=n/a

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.4VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
3.2VulDBAV:L/AC:L/Au:S/C:N/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-24Path Traversal: '../filedir'
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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