Cisco Email Security Appliance 7.6.0/8.0.0 HTTP Request format string

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.3 | $25k-$100k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Cisco Email Security Appliance 7.6.0/8.0.0. Affected is an unknown function of the component HTTP Request Handler. This manipulation causes format string. The identification of this vulnerability is CVE-2015-6285. There is no exploit available.
Details
A vulnerability was found in Cisco Email Security Appliance 7.6.0/8.0.0 (Anti-Malware Software). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component HTTP Request Handler. The manipulation with an unknown input leads to a format string vulnerability. The CWE definition for the vulnerability is CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Format string vulnerability in Cisco Email Security Appliance (ESA) 7.6.0 and 8.0.0 allows remote attackers to cause a denial of service (memory overwrite or service outage) via format string specifiers in an HTTP request, aka Bug ID CSCug21497.
The weakness was shared 09/09/2015 as 40844 / CSCug21497 as confirmed vulnerability alert (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2015-6285 since 08/17/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 12/09/2017).
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 databases at SecurityTracker (ID 1033531†) and Vulnerability Center (SBV-52563†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
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: Format stringCWE: CWE-134 / 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 |
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OpenVAS ID: 103403
OpenVAS Name: Cisco Email Security Appliance Format String Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
08/17/2015 🔍09/09/2015 🔍
09/09/2015 🔍
09/10/2015 🔍
09/10/2015 🔍
09/11/2015 🔍
09/13/2015 🔍
12/09/2017 🔍
Sources
Vendor: cisco.comAdvisory: 40844 / CSCug21497
Status: Confirmed
CVE: CVE-2015-6285 (🔍)
GCVE (CVE): GCVE-0-2015-6285
GCVE (VulDB): GCVE-100-77659
SecurityTracker: 1033531
Vulnerability Center: 52563 - Cisco Email Security Appliance (ESA) Remote DoS via Crafted HTTP Requests, Medium
Entry
Created: 09/11/2015 10:11Updated: 12/09/2017 12:07
Changes: 09/11/2015 10:11 (52), 12/09/2017 12:07 (12)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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