CVE-2020-1484
published 2020-08-17CVE-2020-1484: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory. To exploit this vulnerability, an attacker…
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.74%
50.4th percentile
An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory.
To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.
The security update addresses the vulnerability by correcting how the Windows Work Folders Service handles memory.
Affected
51 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| biscuitsec | biscuit-auth | >= 1.0.0 < 2.0.0 | 2.0.0 |
| github.com | biscuit-auth_biscuit-go | >= 0 < 2.0.0 | 2.0.0 |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1507 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1607 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1709 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1709_for_32-bit_systems | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1803 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1809 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1903_for_32-bit_systems | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1903_for_arm64-based_systems | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1903_for_x64-based_systems | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1909 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_2004 | >= 10.0.0 < publication | publication |
| microsoft | windows_7 | >= 6.1.0 < publication | publication |
| microsoft | windows_7_service_pack_1 | >= 6.1.0 < publication | publication |
| microsoft | windows_8.1 | >= 6.3.0 < publication | publication |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.0.0 < publication | publication |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
vendor_msrc7.8HIGH
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GHSA
Signature forgery in Biscuit
ghsa·2022-06-17
CVE-2022-31053 [CRITICAL] CWE-347 Signature forgery in Biscuit
Signature forgery in Biscuit
### Impact
The paper [Cryptanalysis of Aggregate Γ-Signature and Practical Countermeasures in Application to Bitcoin](https://eprint.iacr.org/2020/1484) defines a way to forge valid Γ-signatures, an algorithm that is used in the Biscuit specification version 1.
It would allow an attacker to create a token with any access level.
As Biscuit v1 was still an early version and not broadly deployed, we were able to contact all known users of Biscuit v1 and help them migrate to Biscuit v2.
We are not aware of any active exploitation of this vulnerability.
### Patches
The version 2 of the specification mandates a different algorithm than gamma signatures and as such is not affected by this vulnerability. The Biscuit implementations in Rust, Haskell, Go, Java and J
GHSA
GHSA-cp2r-rvgm-x6rh: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2020-1516 [HIGH] CWE-269 GHSA-cp2r-rvgm-x6rh: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory
An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Work Folders Service Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1470, CVE-2020-1484.
GHSA
GHSA-xj6q-3qm4-vg6w: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2020-1484 [HIGH] CWE-269 GHSA-xj6q-3qm4-vg6w: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory
An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Work Folders Service Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1470, CVE-2020-1516.
GHSA
GHSA-434x-f5f5-g62j: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2020-1470 [HIGH] CWE-269 GHSA-434x-f5f5-g62j: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory
An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Work Folders Service Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1484, CVE-2020-1516.
Microsoft
Windows Work Folders Service Elevation of Privilege Vulnerability
vendor_msrc·2020-08-11·CVSS 7.8
CVE-2020-1484 [HIGH] Windows Work Folders Service Elevation of Privilege Vulnerability
Windows Work Folders Service Elevation of Privilege Vulnerability
Description: An elevation of privilege vulnerability exists when the Windows Work Folders Service improperly handles memory.
To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.
The security update addresses the vulnerability by correcting how the Windows Work Folders Service handles memory.
Microsoft Windows: Microsoft Windows
Microsoft: Microsoft
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Searc
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-08-17
Published