Fielcoin Lotus BLS Signature Validation VerifyCompressed signature verification
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.5 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in Fielcoin Lotus (affected version not known). This affects the function VerifyCompressed
of the component BLS Signature Validation. The manipulation with an unknown input leads to a signature verification vulnerability. CWE is classifying the issue as CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. This is going to have an impact on integrity.
The weakness was presented 04/16/2021. The advisory is shared at gist.github.com. This vulnerability is uniquely identified as CVE-2021-21405. Technical details and a public exploit are known.
The exploit is shared for download at gist.github.com. It is declared as proof-of-concept.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.
Product
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.7VulDB Meta Temp Score: 3.5
VulDB Base Score: 3.7
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Signature verificationCWE: CWE-347 / CWE-345
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: github.com
Timeline
12/22/2020 🔍04/16/2021 🔍
04/16/2021 🔍
04/21/2021 🔍
Sources
Advisory: gist.github.comStatus: Not defined
Confirmation: 🔍
CVE: CVE-2021-21405 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 04/16/2021 03:07Updated: 04/21/2021 16:24
Changes: 04/16/2021 03:07 (42), 04/21/2021 16:21 (2), 04/21/2021 16:24 (1)
Complete: 🔍
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