IBM WebSphere Application Server 8.0/8.5/9.0 XML Data xml external entity reference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.7 | $5k-$25k | 0.00 |
A vulnerability was found in IBM WebSphere Application Server 8.0/8.5/9.0 (Application Server Software) and classified as critical. This issue affects an unknown functionality of the component XML Data Handler. The manipulation with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. Impacted is confidentiality, integrity, and availability.
The weakness was disclosed 04/20/2021. The advisory is shared at ibm.com. The identification of this vulnerability is CVE-2021-20453. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/28/2021).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at X-Force (196648).
Product
Type
Vendor
Name
Version
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: 7.7VulDB Meta Temp Score: 7.7
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.2
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: Xml external entity referenceCWE: CWE-611 / CWE-610
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
12/17/2020 🔍04/20/2021 🔍
04/20/2021 🔍
04/28/2021 🔍
Sources
Vendor: ibm.comAdvisory: ibm.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-20453 (🔍)
X-Force: 196648
Entry
Created: 04/20/2021 16:47Updated: 04/28/2021 08:34
Changes: 04/20/2021 16:47 (38), 04/23/2021 15:32 (3), 04/23/2021 15:38 (1), 04/28/2021 08:34 (18)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.