SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-1312

In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.

CRITICAL 9.8EPSS 15.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 15.8%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
15.78% probability · 97th percentile
CISA KEV
Not listed
Weakness
CWE-287
Affected
apache/http server · canonical/ubuntu linux · debian/debian linux · netapp/cloud backup · netapp/storagegrid · netapp/clustered data ontap · redhat/jboss core services · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
Source
security@apache.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.