Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability
Published May 3, 2019
7.5
HIGHCVSS 3.0
EPSS 1.73%
Description
A vulnerability in the Deterministic Random Bit Generator (DRBG), also known as Pseudorandom Number Generator (PRNG), used in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a cryptographic collision, enabling the attacker to discover the private key of an affected device. The vulnerability is due to insufficient entropy in the DRBG when generating cryptographic keys. An attacker could exploit this vulnerability by generating a large number of cryptographic keys on an affected device and looking for collisions with target devices. A successful exploit could allow the attacker to impersonate an affected target device or to decrypt traffic secured by an affected key that is sent to or from an affected target device.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<9.8.4
- Version unspecifiedStatusaffectedConstraints<9.9.2.50
- Version
-
- Version unspecifiedStatusaffectedConstraints<6.2.3.12
- Version unspecifiedStatusaffectedConstraints<6.3.0.3
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | n/a |
| |||||||||
| Cisco | Cisco Firepower Threat Defense (FTD) Software | n/a |
|
- ≥ 9.8 · < 9.8.4
- ≥ 9.9 · < 9.9.2.50
- ≥ 6.2.1 · < 6.2.3.12
- ≥ 6.3.0 · < 6.3.0.3
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-10272 Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-10272 | Advisory | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.