Check: SRG-APP-000224-NDM-000270
Network Device Management SRG:
SRG-APP-000224-NDM-000270
(in versions v4 r3 through v2 r7)
Title
The network device must generate unique session identifiers using a FIPS 140-2 approved random number generator. (Cat II impact)
Discussion
Sequentially generated session IDs can be easily guessed by an attacker. Employing the concept of randomness in the generation of unique session identifiers helps to protect against brute-force attacks to determine future session identifiers. Unique session IDs address man-in-the-middle attacks, including session hijacking or insertion of false information into a session. If the attacker is unable to identify or guess the session information related to pending application traffic, they will have more difficulty in hijacking the session or otherwise manipulating valid sessions. This requirement is applicable to devices that use a web interface for device management.
Check Content
If the network device uses a web interface for device management, determine if it generates unique session identifiers using a FIPS 140-2 approved random number generator. This requirement may be verified by validated NIST certification and vendor documentation. If the network device does not use unique session identifiers for its web interface for device management, this is a finding.
Fix Text
Configure the network device to generate unique session identifiers using a FIPS 140-2 approved random number generator.
Additional Identifiers
Rule ID: SV-202077r879639_rule
Vulnerability ID: V-202077
Group Title: SRG-APP-000224
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001188 |
The information system generates unique session identifiers for each session with organization-defined randomness requirements. |
Controls
Number | Title |
---|---|
SC-23 (3) |
Unique Session Identifiers With Randomization |