CVE-2018-19791

CVSS V2 Medium 4 CVSS V3 Medium 6.5
Description
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.
Overview
  • CVE ID
  • CVE-2018-19791
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-12-03T06:29:00
  • Last Modified Date
  • 2019-02-05T16:10:55
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:litespeedtech:openlitespeed:*:*:*:*:*:*:*:* 1 OR 1.5.0
cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc3:*:*:*:*:*:* 1 OR
cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc4:*:*:*:*:*:* 1 OR
cpe:2.3:a:litespeedtech:openlitespeed:1.5.0:rc5:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/litespeedtech/openlitespeed/issues/117 Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-19791
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19791
History
Created Old Value New Value Data Type Notes
2022-05-10 07:59:27 Added to TrackCVE
2022-12-03 14:54:21 2018-12-03T06:29Z 2018-12-03T06:29:00 CVE Published Date updated
2022-12-03 14:54:21 2019-02-05T16:10:55 CVE Modified Date updated
2022-12-03 14:54:21 Analyzed Vulnerability Status updated