Vulnerability Name:

CVE-2021-32917 (CCN-201791)

Assigned:2021-05-13
Published:2021-05-13
Updated:2021-06-17
Summary:An issue was discovered in Prosody before 0.11.9. The proxy65 component allows open access by default, even if neither of the users has an XMPP account on the local server, allowing unrestricted use of the server's bandwidth.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/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): Low
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 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:L/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): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN 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
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-862
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-32917

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210513 Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)

Source: MLIST
Type: Mailing List, Mitigation, Third Party Advisory
[oss-security] 20210514 Re: Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)

Source: MISC
Type: Release Notes, Vendor Advisory
https://blog.prosody.im/prosody-0.11.9-released/

Source: XF
Type: UNKNOWN
prosody-cve202132917-dos(201791)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20210616 [SECURITY] [DLA 2687-1] prosody security update

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-b5d8c6d086

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-498be8f560

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-a33f6e36e1

Source: CCN
Type: Prosody security advisory 2021-05-12
Prosody security advisory 2021-05-12

Source: CCN
Type: oss-sec Mailing List, Wed, 5 May 2021 09:38:05 -0700
Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)

Source: MISC
Type: Third Party Advisory
https://security.gentoo.org/glsa/202105-15

Source: DEBIAN
Type: Third Party Advisory
DSA-4916

Vulnerable Configuration:Configuration 1:
  • cpe:/a:prosody:prosody:*:*:*:*:*:*:*:* (Version < 0.11.9)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:113177
    P
    		prosody-0.11.10-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106599
    P
    		prosody-0.11.10-1.2 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:111539
    P
    		Security update for prosody (Moderate)
    2021-07-08
    oval:org.opensuse.security:def:11241
    P
    		Security update for prosody (Moderate)
    2021-07-08
    oval:org.opensuse.security:def:96482
    P
    		Security update for prosody (Important)
    2021-05-18
    oval:org.opensuse.security:def:109829
    P
    		Security update for prosody (Important)
    2021-05-18
    oval:org.opensuse.security:def:103172
    P
    		Security update for prosody (Important)
    2021-05-18
    oval:org.opensuse.security:def:11214
    P
    		Security update for prosody (Important)
    2021-05-18
    oval:org.opensuse.security:def:111383
    P
    		Security update for prosody (Important)
    2021-05-14
    BACK
    prosody prosody *
    debian debian linux 9.0
    debian debian linux 10.0
    fedoraproject fedora 32
    fedoraproject fedora 33
    fedoraproject fedora 34