CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
31.4%
The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body repeatedly, as demonstrated by an HTTP Range header value beginning with the “bytes=0-,0-” substring.
Vendor | Product | Version | CPE |
---|---|---|---|
litespeedtech | openlitespeed | * | cpe:2.3:a:litespeedtech:openlitespeed:*:*:*:*:*:*:*:* |
litespeedtech | openlitespeed | 1.5.0 | cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:-:*:*:*:*:*:* |
litespeedtech | openlitespeed | 1.5.0 | cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc1:*:*:*:*:*:* |
litespeedtech | openlitespeed | 1.5.0 | cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc2:*:*:*:*:*:* |
litespeedtech | openlitespeed | 1.5.0 | cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc3:*:*:*:*:*:* |
litespeedtech | openlitespeed | 1.5.0 | cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc4:*:*:*:*:*:* |
litespeedtech | openlitespeed | 1.5.0 | cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc5:*:*:*:*:*:* |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
31.4%