Vulnerability Name:

CVE-2020-9481 (CCN-180966)

Assigned:2020-04-27
Published:2020-04-27
Updated:2020-08-18
Summary:Apache ATS 6.0.0 to 6.2.3, 7.0.0 to 7.1.9, and 8.0.0 to 8.0.6 is vulnerable to a HTTP/2 slow read attack.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-9481

Source: XF
Type: UNKNOWN
apache-cve20209481-dos(180966)

Source: CCN
Type: Apache Mailing List, 2020/04/27 18:20:36
Apache Traffic Server is vulnerable to a HTTP/2 slow read attack (revised URL to CVE)

Source: CONFIRM
Type: Mailing List, Patch, Third Party Advisory
https://lists.apache.org/thread.html/r21ddaf0a4a973f3c43c7ff399ae50d2f858f13f87bd6a9551c5cf6db%40%3Cannounce.trafficserver.apache.org%3E

Source: CCN
Type: Apache Traffic Server Web site
Apache Traffic Server

Source: DEBIAN
Type: Third Party Advisory
DSA-4672

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apache:traffic_server:*:*:*:*:*:*:*:* (Version >= 6.0.0 and <= 6.2.3)
  • OR cpe:/a:apache:traffic_server:*:*:*:*:*:*:*:* (Version >= 7.0.0 and <= 7.1.9)
  • OR cpe:/a:apache:traffic_server:*:*:*:*:*:*:*:* (Version >= 8.0.0 and <= 8.0.6)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:apache:traffic_server:6.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:apache:traffic_server:7.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:apache:traffic_server:6.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:apache:traffic_server:8.0.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apache traffic server *
    apache traffic server *
    apache traffic server *
    debian debian linux 10.0
    apache traffic server 6.0.0
    apache traffic server 7.0.0
    apache traffic server 6.2.3
    apache traffic server 8.0.0