TRENDnet TEW-827DRU up to 2.06B04 SSI Binary apply.cgi wifi_captive_portal_login REMOTE_ADDR out-of-bounds write

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.5 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in TRENDnet TEW-827DRU up to 2.06B04 and classified as critical. The impacted element is the function wifi_captive_portal_login of the file apply.cgi of the component SSI Binary. This manipulation of the argument REMOTE_ADDR causes out-of-bounds write.
This vulnerability is handled as CVE-2020-14078. The attack can be initiated remotely. There is not any exploit available.
Details
A vulnerability classified as critical was found in TRENDnet TEW-827DRU up to 2.06B04. Affected by this vulnerability is the function wifi_captive_portal_login of the file apply.cgi of the component SSI Binary. The manipulation of the argument REMOTE_ADDR with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action wifi_captive_portal_login with a sufficiently long REMOTE_ADDR key.
The weakness was released 06/15/2020. This vulnerability is known as CVE-2020-14078 since 06/15/2020. The attack can be launched remotely. A single authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Entries connected to this vulnerability are available at VDB-156694, VDB-156693, VDB-156692 and VDB-156690. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.6VulDB Meta Temp Score: 7.6
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
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
06/15/2020 🔍06/15/2020 🔍
06/15/2020 🔍
06/15/2020 🔍
Sources
Status: Not definedCVE: CVE-2020-14078 (🔍)
GCVE (CVE): GCVE-0-2020-14078
GCVE (VulDB): GCVE-100-156691
See also: 🔍
Entry
Created: 06/15/2020 15:11Updated: 06/15/2020 15:16
Changes: 06/15/2020 15:11 (39), 06/15/2020 15:16 (17)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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