PHPOffice PhpSpreadsheet up to 1.5.0 Encoding securityScan XLSX File xml injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.4 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in PHPOffice PhpSpreadsheet up to 1.5.0. Affected by this issue is the function securityScan
of the component Encoding Handler. The manipulation as part of a XLSX File leads to a xml injection vulnerability. Using CWE to declare the problem leads to CWE-91. The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system. Impacted is confidentiality, integrity, and availability. CVE summarizes:
securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file
The bug was discovered 11/12/2018. The weakness was published 11/14/2018 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2018-19277 since 11/14/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. This vulnerability is assigned to T1505 by the MITRE ATT&CK project.
The exploit is available 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 2 days. During that time the estimated underground price was around $0-$5k.
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 Exploit-DB (46050).
Product
Vendor
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: 7.5VulDB Meta Temp Score: 7.4
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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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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 injectionCWE: CWE-91 / CWE-74 / CWE-707
ATT&CK: T1505
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
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 |
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
11/12/2018 🔍11/14/2018 🔍
11/14/2018 🔍
11/14/2018 🔍
11/15/2018 🔍
06/06/2023 🔍
Sources
Advisory: 18Status: Not defined
CVE: CVE-2018-19277 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 11/15/2018 08:06Updated: 06/06/2023 13:48
Changes: 11/15/2018 08:06 (59), 04/12/2020 20:27 (4), 06/06/2023 13:48 (4)
Complete: 🔍
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