HTTP Range Header Amplification Vulnerability in LiteSpeed OpenLiteSpeed

CVE-2018-19791 · MEDIUM Severity

AV:N/AC:L/AU:S/C:N/I:N/A:P

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.

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