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ubuntuUbuntuUSN-4834-1
HistoryMar 15, 2021 - 12:00 a.m.

Prosody vulnerability

2021-03-1500:00:00
ubuntu.com
18
prosody
ubuntu
esm
jabber
xmpp
server
vulnerability
validation
virtual host
remote attacker
resources

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

8.9

Confidence

High

EPSS

0.002

Percentile

59.1%

Releases

  • Ubuntu 18.04 ESM

Packages

  • prosody - Lightweight Jabber/XMPP server

Details

It was discovered that Prosody incorrectly validated the virtual host
associated with a user session across stream restarts. A remote attacker
could use this issue to gain unintended access to resources.

OSVersionArchitecturePackageVersionFilename
Ubuntu18.04noarchprosody< 0.10.0-1ubuntu0.1~esm1UNKNOWN
Ubuntu18.04noarchprosody< 0.10.0-1build1UNKNOWN
Ubuntu18.04noarchprosody-dbgsym< 0.10.0-1build1UNKNOWN

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

8.9

Confidence

High

EPSS

0.002

Percentile

59.1%