Lee Howard HylaFAX+ up to 5.4.2 LDAP Authentication memory corruption
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.9 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Lee Howard HylaFAX+ up to 5.4.2. Affected is an unknown function of the component LDAP Authentication. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2013-5680. Furthermore, there is an exploit available.
Details
A vulnerability classified as critical has been found in Lee Howard HylaFAX+ up to 5.4.2. This affects an unknown functionality of the component LDAP Authentication. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Heap-based buffer overflow in hfaxd in HylaFAX+ 5.2.4 through 5.5.3, when using LDAP authentication, might allow remote attackers to cause a denial of service (child hang) or execute arbitrary code via a long USER command.
The weakness was shared 04/06/2014 as confirmed posting (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2013-5680 since 09/03/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.
A public exploit has been developed by Dennis Jenkins and been published even before and not after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 186 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 76348 (HylaFAX+ 5.2.4 < 5.5.4 Remote Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16470.
The vulnerability is also documented in the databases at X-Force (87585), Exploit-DB (28683), Tenable (76348), SecurityTracker (ID 1029119†) and Vulnerability Center (SBV-45375†). Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 6.9
VulDB Base Score: 7.3
VulDB Temp Score: 6.9
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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| 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: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Dennis Jenkins
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 76348
Nessus Name: HylaFAX+ 5.2.4 < 5.5.4 Remote Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
TippingPoint: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍
Fortigate IPS: 🔍
Timeline
09/03/2013 🔍09/30/2013 🔍
10/01/2013 🔍
10/02/2013 🔍
10/02/2013 🔍
04/06/2014 🔍
04/06/2014 🔍
07/02/2014 🔍
07/14/2014 🔍
03/24/2015 🔍
05/09/2026 🔍
Sources
Advisory: securityfocus.com⛔Status: Confirmed
Confirmation: 🔍
CVE: CVE-2013-5680 (🔍)
GCVE (CVE): GCVE-0-2013-5680
GCVE (VulDB): GCVE-100-66879
X-Force: 87585
SecurityFocus: 62729
SecurityTracker: 1029119 - HylaFAX+ Heap Overflow May Let Remote Users Execute Arbitrary Code
Vulnerability Center: 45375 - HylaFAX+ 5.2.4 Through 5.5.3 Remote DoS and Code Execution via a Long USER Command, High
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 03/24/2015 15:54Updated: 05/09/2026 22:00
Changes: 03/24/2015 15:54 (61), 06/02/2017 07:34 (16), 02/06/2022 15:39 (3), 02/06/2022 15:45 (1), 11/22/2024 15:38 (14), 05/09/2026 22:00 (1)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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