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CVE-2020-9502

CRITICALCVSS 9.8/10EPSS 1.72%

Last modified

CVE-2020-9502 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Some Dahua products with Build time before December 2019 have Session ID predictable vulnerabilities. During normal user access, an attacker can use the predicted Session ID to construct a data packet to attack the device.. EPSS estimates a 1.72% chance of exploitation in the next 30 days.

Description

Some Dahua products with Build time before December 2019 have Session ID predictable vulnerabilities. During normal user access, an attacker can use the predicted Session ID to construct a data packet to attack the device.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.72%

74.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DahuasecuritySd6al Firmware< 2019-12
DahuasecuritySd5a Firmware< 2019-12
DahuasecuritySd1a Firmware< 2019-12
DahuasecurityPtz1a Firmware< 2019-12
DahuasecuritySd50 Firmware< 2019-12
DahuasecuritySd52c Firmware< 2019-12
DahuasecurityIpc-Hx5842h Firmware< 2019-12
DahuasecurityIpc-Hx7842h Firmware< 2019-12
DahuasecurityIpc-Hx2xxx Firmware< 2019-12
DahuasecurityIpc-Hxxx5x4x Firmware< 2019-12
DahuasecurityN42b1p Firmware< 2019-12
DahuasecurityN42b2p Firmware< 2019-12
DahuasecurityN42b3p Firmware< 2019-12
DahuasecurityN52a4p Firmware< 2019-12
DahuasecurityN54a4p Firmware< 2019-12
DahuasecurityN52b2p Firmware< 2019-12
DahuasecurityN52b5p Firmware< 2019-12
DahuasecurityN52b3p Firmware< 2019-12
DahuasecurityN54b2p Firmware< 2019-12
DahuasecurityIpc-Hdbw1320e-W Firmware< 2019-12

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-9502?
Some Dahua products with Build time before December 2019 have Session ID predictable vulnerabilities. During normal user access, an attacker can use the predicted Session ID to construct a data packet to attack the device.
How severe is CVE-2020-9502?
CVE-2020-9502 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.72% probability of exploitation in the next 30 days.
How do I fix CVE-2020-9502?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-9502?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST