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CVE-2022-36979: ZDI-22-784

This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche 6.3.2.3490. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the AvalancheDaoSupport class. A crafted request can trigger execution of SQL queries composed from a user-supplied string. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-15493.

CVE
#sql#vulnerability#auth

May 26th, 2022

Ivanti Avalanche EnterpriseServer Service SQL Injection Authentication Bypass Vulnerability****ZDI-22-784
ZDI-CAN-15493

CVE ID

CVE-2022-36979

CVSS SCORE

7.5, (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

AFFECTED VENDORS

Ivanti

AFFECTED PRODUCTS

Avalanche

VULNERABILITY DETAILS

This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the AvalancheDaoSupport class. A crafted request can trigger execution of SQL queries composed from a user-supplied string. An attacker can leverage this vulnerability to bypass authentication on the system.

ADDITIONAL DETAILS

Ivanti has issued an update to correct this vulnerability. More details can be found at:
https://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt

DISCLOSURE TIMELINE

  • 2021-11-10 - Vulnerability reported to vendor
  • 2022-05-26 - Coordinated public release of advisory
  • 2022-07-27 - Advisory Updated

CREDIT

Piotr Bazydlo (@chudypb)

BACK TO ADVISORIES

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