Unauthenticated account discovery via login response discrepancy
Published Nov 3, 2023 · Updated Sep 5, 2024
Username enumeration in KYOCERA Document Solutions TASKalfa 4053ci through 2VG_S000.002.561 allows remote attackers to identify valid accounts. The Command Center RX login on TCP port 443 returns one error for an unknown username and another for an existing username regardless of whether the password is correct. No authentication is required, and the disclosed account names can support targeted password guessing without exposing passwords directly.
Summary
What happened
Username enumeration in KYOCERA Document Solutions TASKalfa 4053ci through 2VG_S000.002.561 allows remote attackers to identify valid accounts. The Command Center RX login on TCP port 443 returns one error for an unknown username and another for an existing username regardless of whether the password is correct. No authentication is required, and the disclosed account names can support targeted password guessing without exposing passwords directly.
The record
- CVE
- CVE-2023-34261
- Published
- Nov 3, 2023
- Updated
- Sep 5, 2024
- Vendor
- KYOCERA Document Solutions Inc.
- Product
- TASKalfa 4053ci
- Classifications
- CWE-200, T1087
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 3, 2023CVE publishedPublication date reported by the CVE source.
- Sep 5, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=2VG_S000.002.56
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- SEC Consult CCRX username-enumeration proof of conceptproof of concept · demonstrated
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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