Critical severity · published Jul 3, 2023
CVE-2023-26258
Arcserve UDP through 9.0.6034 allows authentication bypass
9.8
CVSS
40%
EPSS
No
On KEV
Description
Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)40.0% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UD
Udp · Arcserve
through 9.0.6034 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26258
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-26258
support.arcserve.com
https://support.arcserve.com/s/article/KB000015720?language=en_US
Product
https://www.arcserve.com/products/arcserve-udp
Exploit
https://www.mdsec.co.uk/2023/06/cve-2023-26258-remote-code-execution-in-arcserve-udp-backup/
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