Open Connectivity Foundation UPnP Specification Subscription Request default permission
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
9.3 | $0-$5k | 0.00 |
A vulnerability was found in Open Connectivity Foundation UPnP Specification (affected version not known) and classified as very critical. This issue affects some unknown functionality of the component Subscription Request Handler. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality, and availability. The summary by CVE is:
The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subscription request with a delivery URL on a different network segment than the fully qualified event-subscription URL, aka the CallStranger issue.
The weakness was presented 06/08/2020 (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2020-12695 since 05/07/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/09/2020). The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Vendor
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.3VulDB Meta Temp Score: 9.3
VulDB Base Score: 9.3
VulDB Temp Score: 9.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.3
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: Default permissionCWE: CWE-276 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
05/07/2020 🔍06/08/2020 🔍
06/09/2020 🔍
06/09/2020 🔍
Sources
Advisory: openwall.comStatus: Not defined
CVE: CVE-2020-12695 (🔍)
Entry
Created: 06/09/2020 06:52Updated: 06/09/2020 06:57
Changes: 06/09/2020 06:52 (36), 06/09/2020 06:57 (17)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.