Avamar, Integrated Data Protection Appliance - Authentication Bypass (CVE-2018-1217)

CVE-2018-1217 is a critical vulnerability in Dell EMC Avamar Server and Integrated Data Protection Appliance that stems from missing access control checks in the Avamar Installation Manager. This flaw allows remote, unauthenticated attackers to read or modify Local Download Service (LDLS) credentials, potentially enabling them to impersonate service actions or disrupt connectivity to Dell EMC Online Support. Attackers could exploit this vulnerability to gain unauthorized access, compromise sensitive credentials, and impact the integrity and availability of backup and support services.

CrowdSec has been tracking this vulnerability and its exploits since 15th of October 2025.

Insights from the CrowdSec network reveal that the attackers trying to exploit CVE-2018-1217 are composed of a fairly even mix of opportunistic and targeted actors. Some attackers employ preliminary reconnaissance, while others use indiscriminate scanning. Data from the CrowdSec community also indicates a gradual decrease in attacks targeting CVE-2018-1217. While still present in the wild, exploitation levels have dropped noticeably week-over-week. This may signal that the vulnerability is becoming less relevant or that defenses are improving fast enough for attackers to lose interest.

Attackers exploit unauthenticated POST requests to the /avi/avigui/avigwt endpoint, attempting to invoke the getLDLSConfig method in order to read or modify sensitive LDLS credentials.