CVE-2024-30212
If the block count is increased, the full RAM can be exposed.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
If a SCSI READ(10) command is initiated via USB using the largest LBA (0xFFFFFFFF) with it's default block size of 512 and a count of 1, the first 512 byte of the 0x80000000 memory area is returned to the user. If the block count is increased, the full RAM can be exposed. The same method works to write to this memory area. If RAM contains pointers, those can be - depending on the application - overwritten to return data from any other offset including Progam and Boot Flash.
- CVSS 4.0
- 7.0 HIGHCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.57% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Source
- dc3f6da9-85b5-4a73-84a2-2ec90b40fca5
References
- https://github.com/Fehr-GmbH/blackleak
- https://github.com/Microchip-MPLAB-Harmony/core/blob/master/release_notes.md
- https://github.com/Microchip-MPLAB-Harmony/core/commit/d4608a4f1a140bd899cd4337cdbfb343a4339216
- https://github.com/Fehr-GmbH/blackleak
- https://github.com/Microchip-MPLAB-Harmony/core/blob/master/release_notes.md
- https://github.com/Microchip-MPLAB-Harmony/core/commit/d4608a4f1a140bd899cd4337cdbfb343a4339216
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.