Zulip up to 5.2 API Event expression is always true
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
2.2 | $0-$5k | 0.00 |
A vulnerability was found in Zulip up to 5.2. It has been declared as problematic. This vulnerability affects some unknown functionality of the component API Event Handler. The manipulation with an unknown input leads to a expression is always true vulnerability. The CWE definition for the vulnerability is CWE-571. The product contains an expression that will always evaluate to true. As an impact it is known to affect confidentiality. CVE summarizes:
Zulip is an open-source team collaboration tool. Versions 2.1.0 through and including 5.2 are vulnerable to a logic error. A stream configured as private with protected history, where new subscribers should not be allowed to see messages sent before they were subscribed, when edited causes the server to incorrectly send an API event that includes the edited message to all of the stream’s current subscribers. This API event is ignored by official clients, but can be observed by using a modified client or the browser’s developer tools. This bug will be fixed in Zulip Server 5.3. There are no known workarounds.
The weakness was published 06/25/2022 as GHSA-m5j3-jp59-6f3q. The advisory is available at github.com. This vulnerability was named CVE-2022-31017 since 05/18/2022. The technical details are unknown and an exploit is not available.
Upgrading to version 5.3 eliminates this vulnerability.
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 2.3VulDB Meta Temp Score: 2.2
VulDB Base Score: 2.2
VulDB Temp Score: 2.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 2.6
NVD Vector: 🔍
CNA Base Score: 2.0
CNA Vector (GitHub, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Expression is always trueCWE: CWE-571 / CWE-697
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Zulip 5.3
Timeline
05/18/2022 🔍06/25/2022 🔍
06/25/2022 🔍
07/15/2022 🔍
Sources
Advisory: GHSA-m5j3-jp59-6f3qStatus: Confirmed
CVE: CVE-2022-31017 (🔍)
Entry
Created: 06/25/2022 15:06Updated: 07/15/2022 09:40
Changes: 06/25/2022 15:06 (39), 07/15/2022 09:40 (28)
Complete: 🔍
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