CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.9 | $0-$5k | 0.00 |
A vulnerability, which was classified as very critical, was found in FreeXL 1.0.3. Affected is the function read_legacy_biff
. The manipulation as part of a XLS File 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. CVE summarizes:
An exploitable heap based buffer overflow vulnerability exists in the 'read_biff_next_record function' of FreeXL 1.0.3. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability.
The bug was discovered 09/11/2017. The weakness was released 04/24/2018 by Cisco with Cisco Talos (Website). The advisory is available at securityfocus.com. This vulnerability is traded as CVE-2017-2923 since 12/01/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/07/2023).
The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103258 (Debian DLA-1098-1 : freexl security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170393 (OpenSUSE Security Update for freexl (openSUSE-SU-2017:2537-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (103258). Entry connected to this vulnerability is available at 117067.
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.0VulDB Meta Temp Score: 8.9
VulDB Base Score: 9.4
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CNA Base Score: 8.8
CNA Vector (Talos): 🔍
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: Memory corruptionCWE: CWE-119
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 |
Nessus ID: 103258
Nessus Name: Debian DLA-1098-1 : freexl security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 53377
OpenVAS Name: Debian Security Advisory DSA 3976-1 (freexl - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
12/01/2016 🔍09/11/2017 🔍
09/11/2017 🔍
09/17/2017 🔍
09/18/2017 🔍
04/24/2018 🔍
04/24/2018 🔍
04/25/2018 🔍
03/07/2023 🔍
Sources
Advisory: securityfocus.com⛔Researcher: Cisco
Organization: Cisco Talos
Status: Not defined
CVE: CVE-2017-2923 (🔍)
OVAL: 🔍
SecurityFocus: 100807 - FreeXL 'read_biff_next_record()' Function Heap Buffer Overflow Vulnerability
See also: 🔍
Entry
Created: 04/25/2018 10:27Updated: 03/07/2023 14:24
Changes: 04/25/2018 10:27 (76), 01/31/2020 11:18 (4), 03/07/2023 14:24 (14)
Complete: 🔍
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