Privilege escalation via many-sided RowHammer patterns
Published Mar 10, 2020 · Updated Aug 4, 2024
RowHammer in DDR4 and LPDDR4 DRAM manufactured after 2015 allows attackers to corrupt memory and escalate privileges via crafted access patterns. In-DRAM Target Row Refresh tracks too few aggressor rows, so many-sided hammering evades refresh and induces bit flips in adjacent rows. Exploitation requires sustained, hardware-specific memory access; demonstrated outcomes include kernel or Sudo privilege escalation and cross-tenant RSA-key corruption.
Summary
What happened
RowHammer in DDR4 and LPDDR4 DRAM manufactured after 2015 allows attackers to corrupt memory and escalate privileges via crafted access patterns. In-DRAM Target Row Refresh tracks too few aggressor rows, so many-sided hammering evades refresh and induces bit flips in adjacent rows. Exploitation requires sustained, hardware-specific memory access; demonstrated outcomes include kernel or Sudo privilege escalation and cross-tenant RSA-key corruption.
The record
- CVE
- CVE-2020-10255
- Published
- Mar 10, 2020
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-20, T1068
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 10, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- TRRespass open-source implementationfunctional · demonstrated
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Technologies
Your stack
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Your stack
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