Privilege Escalation via Cryptographic Signature Verification Bypass in NetBackup Flex OS Shell
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
An authenticated, low-privileged user with access to the NetBackup Flex
OS management shell could bypass the cryptographic signature
verification step of a privileged support command by supplying a
specially formed access credential. Successful exploitation grants the
attacker an unrestricted root shell with full control over the Flex
appliance host and all hosted containers, completely compromising
confidentiality, integrity, and availability.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Affected products
Cohesity · NetBackup Flex OS