Cisco Unity Connection Bulk Administration Tool Connection Request resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.00 |
A vulnerability was found in Cisco Unity Connection (Unified Communication Software) (unknown version). It has been classified as problematic. This affects an unknown code block of the component Bulk Administration Tool. The manipulation as part of a Connection Request leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:
A vulnerability in the Bulk Administration Tool (BAT) for Cisco Unity Connection could allow an authenticated, remote attacker to cause high disk utilization, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software does not restrict the maximum size of certain files that can be written to disk. An attacker who has valid administrator credentials for an affected system could exploit this vulnerability by sending a crafted, remote connection request to an affected system. A successful exploit could allow the attacker to write a file that consumes most of the available disk space on the system, causing application functions to operate abnormally and leading to a DoS condition.
The bug was discovered 10/03/2018. The weakness was shared 10/05/2018 as cisco-sa-20181003-unity-dos as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2018-15396 since 08/17/2018. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k.
Upgrading eliminates this vulnerability.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.4
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.8
NVD Vector: 🔍
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: Resource managementCWE: CWE-399 / CWE-404
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: 🔍
Timeline
08/17/2018 🔍10/03/2018 🔍
10/05/2018 🔍
10/05/2018 🔍
10/06/2018 🔍
05/22/2023 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-20181003-unity-dos
Status: Confirmed
CVE: CVE-2018-15396 (🔍)
SecurityTracker: 1041782
Entry
Created: 10/06/2018 11:11Updated: 05/22/2023 14:23
Changes: 10/06/2018 11:11 (60), 03/30/2020 16:31 (1), 05/22/2023 14:23 (4)
Complete: 🔍
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