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cveGitHub_MCVE-2022-31168
HistoryJul 22, 2022 - 1:15 p.m.

CVE-2022-31168

2022-07-2213:15:08
CWE-285
CWE-863
GitHub_M
web.nvd.nist.gov
435
zulip
open source
team chat
cve-2022-31168
authorization bypass
vulnerability
security patch

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

AI Score

8.4

Confidence

High

EPSS

0.002

Percentile

55.9%

Zulip is an open source team chat tool. Due to an incorrect authorization check in Zulip Server 5.4 and earlier, a member of an organization could craft an API call that grants organization administrator privileges to one of their bots. The vulnerability is fixed in Zulip Server 5.5. Members who don’t own any bots, and lack permission to create them, can’t exploit the vulnerability. As a workaround for the vulnerability, an organization administrator can restrict the Who can create bots permission to administrators only, and change the ownership of existing bots.

Affected configurations

Nvd
Vulners
Node
zulipzulipRange<5.5
VendorProductVersionCPE
zulipzulip*cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "zulip",
    "vendor": "zulip",
    "versions": [
      {
        "status": "affected",
        "version": "< 5.5"
      }
    ]
  }
]

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

AI Score

8.4

Confidence

High

EPSS

0.002

Percentile

55.9%

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