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    CVE-2021-43041

    An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. A crafted HTTP request could induce a format string vulnerability in the privileged vaultServer application.

    Published:Dec 6, 2021
    Last Modified:Nov 21, 2024
    EPS:Dec 6, 2021
    EPSS Score:0.00856
    CVSS Score:8.8

    Affected Products

    Vendor
    Kaseya
    Product
    Unitrends Backup

    Exploits

    https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-1https://www.cyberonesecurity.com/blog/exploiting-kaseya-unitrends-backup-appliance-part-2

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-135 Format String Injection
    CAPEC-67 String Format Overflow in syslog()

    Related CVEs

    CVE-2021-40386 (CVSS 9.8) — Kaseya Unitrends Client/Agent through 10.5,5 allows remote attackers to execute arbitrary code.…
    CVE-2021-43040 (CVSS 8.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The privileged vaultServer could b…
    CVE-2021-43036 (CVSS 9.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The password for the PostgreSQL wg…
    CVE-2021-43038 (CVSS 8.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The wguest account could execute c…
    CVE-2021-43042 (CVSS 9.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. A buffer overflow existed in the v…
    CVE-2021-43043 (CVSS 6.5) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The apache user could read arbitra…
    CVE-2021-43044 (CVSS 9.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The SNMP daemon was configured wit…
    CVE-2021-43033 (CVSS 9.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. Multiple functions in the bpserver…
    CVE-2021-43035 (CVSS 9.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. Two unauthenticated SQL injection …
    CVE-2021-43037 (CVSS 7.8) — An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The Unitrends Windows agent was vu…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High