Vulnerability Details : CVE-2021-37587
In Charm 0.43, any single user can decrypt DAC-MACS or MA-ABE-YJ14 data.
Products affected by CVE-2021-37587
- cpe:2.3:a:jhu:charm:0.43:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-37587
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-37587
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-37587
-
The product uses a broken or risky cryptographic algorithm or protocol.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-37587
-
https://eprint.iacr.org/2020/460
Cryptology ePrint Archive: Report 2020/460 - A Bunch of Broken Schemes: A Simple yet Powerful Linear Approach to Analyzing Security of Attribute-Based EncryptionThird Party Advisory
-
https://github.com/JHUISI/charm/issues/276
Broken schemes in last release · Issue #276 · JHUISI/charm · GitHubIssue Tracking;Third Party Advisory
-
https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html
abenc_maabe_yj14 — Charm-Crypto 0.50 documentationPatch;Third Party Advisory
-
https://www2.hci.uni-hannover.de/papers/Tan2019.pdf
Technical Description;Third Party Advisory
-
https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html
abenc_dacmacs_yj14 — Charm-Crypto 0.50 documentationThird Party Advisory
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