Oracle Enterprise Communications Broker 3.3 Routing off-by-one
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Oracle Enterprise Communications Broker 3.3 and classified as critical. This affects an unknown part of the component Routing. Executing a manipulation can lead to an unknown weakness. This vulnerability is tracked as CVE-2021-23017. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.
Details
A vulnerability was found in Oracle Enterprise Communications Broker 3.3. It has been declared as critical. This vulnerability affects an unknown code of the component Routing. The CWE definition for the vulnerability is CWE-193. A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 01/19/2021 as Oracle Critical Patch Update Advisory - January 2022. The advisory is shared for download at oracle.com. This vulnerability was named CVE-2021-23017. Technical details are unknown but a public exploit is available.
It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 236746 (Alibaba Cloud Linux 3 : 0036: nginx:1.18 (ALINUX3-SA-2021:0036)), which helps to determine the existence of the flaw in a target environment.
Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Exploit-DB (50973) and Tenable (236746). Once again VulDB remains the best source for vulnerability data.
Product
Vendor
Name
Version
License
Website
- Vendor: https://www.oracle.com
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.2
VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.4
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| 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: Off-by-oneCWE: CWE-193 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 236746
Nessus Name: Alibaba Cloud Linux 3 : 0036: nginx:1.18 (ALINUX3-SA-2021:0036)
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
01/06/2021 🔍01/19/2021 🔍
01/19/2021 🔍
01/19/2022 🔍
05/16/2025 🔍
Sources
Vendor: oracle.comAdvisory: Oracle Critical Patch Update Advisory - January 2022
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-23017 (🔍)
GCVE (CVE): GCVE-0-2021-23017
GCVE (VulDB): GCVE-100-190852
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 01/19/2022 15:47Updated: 05/16/2025 02:00
Changes: 01/19/2022 15:47 (38), 01/22/2022 07:57 (3), 01/22/2022 08:04 (19), 10/21/2024 05:05 (23), 05/16/2025 02:00 (2)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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