Re:Debian apt security update: man-in-the-middle arbitrary c...
by RagingCactus on Wednesday November 04, 2026 @08:54AM
(#50365551)
Nitpick about CVSS scoring:
I always strongly argue against framing MITM scenarios as AV:Adjacent as MITM attacks can be performed at any point of the transmission path. If someone MITMs the package mirror the attacker is certainly not adjacent to the vulnerable component. I argue in favor of using Attack Complexity: High instead, as you do need to be in a MITM position.
And while UI:Required could be argued, there are also unattended upgrades and updates are performed regularly anyway. CVSS 4 makes some progress here with UI active vs passive, but ultimately CVSS is often not helpful for capturing the unique risk of a vulnerability.
I always strongly argue against framing MITM scenarios as AV:Adjacent as MITM attacks can be performed at any point of the transmission path. If someone MITMs the package mirror the attacker is certainly not adjacent to the vulnerable component. I argue in favor of using Attack Complexity: High instead, as you do need to be in a MITM position.
And while UI:Required could be argued, there are also unattended upgrades and updates are performed regularly anyway. CVSS 4 makes some progress here with UI active vs passive, but ultimately CVSS is often not helpful for capturing the unique risk of a vulnerability.