Advisory details:
github_osv / GHSA-m8cj-3v68-3cxj
| Advisory ID | github_osv/GHSA-m8cj-3v68-3cxj |
| Aliases |
CVE-2024-34102
|
| Summary | Magento Open Source affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability Adobe Commerce versions 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier are affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could result in arbitrary code execution. An attacker could exploit this vulnerability by sending a crafted XML document that references external entities. Exploitation of this issue does not require user interaction. |
| Status | Published |
| Exploitability | 2.0 |
| Weighted Severity | 8.8 |
| Risk | 10.0 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 9.8 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/06/GHSA-m8cj-3v68-3cxj/GHSA-m8cj-3v68-3cxj.json |
| generic_textual | CRITICAL |
| Data source | Metasploit |
|---|---|
| Description | This module exploits a XXE vulnerability in Magento 2.4.7-p1 and below which allows an attacker to read any file on the system. |
| Note | Stability: - crash-safe Reliability: [] SideEffects: - ioc-in-logs |
| Ransomware campaign use | Unknown |
| Source publication date | June 11, 2024 |
| Source URL | https://github.com/rapid7/metasploit-framework/tree/master/modules/auxiliary/gather/magento_xxe_cve_2024_34102.rb |
| Data source | Metasploit |
|---|---|
| Description | This combination of an Arbitrary File Read (CVE-2024-34102) and a Buffer Overflow in glibc (CVE-2024-2961) allows for unauthenticated Remote Code Execution on the following versions of Magento and Adobe Commerce and earlier if the PHP and glibc versions are also vulnerable: - 2.4.7 and earlier - 2.4.6-p5 and earlier - 2.4.5-p7 and earlier - 2.4.4-p8 and earlier Vulnerable PHP versions: - From PHP 7.0.0 (2015) to 8.3.7 (2024) Vulnerable iconv() function in the GNU C Library: - 2.39 and earlier The exploit chain is quite interesting and for more detailed information check out the references. The tl;dr being: CVE-2024-34102 is an XML External Entity vulnerability leveraging PHP filters to read arbitrary files from the target system. The exploit chain uses this to read /proc/self/maps, providing the address of PHP's heap and the libc's filename. The libc is then downloaded, and the offsets of libc_malloc, libc_system and libc_realloc are extracted, and made use of later in the chain. With this information and expert knowledge of PHP's heap (chunks, free lists, buckets, bucket brigades), CVE-2024-2961 can be exploited. A long chain of PHP filters is constructed and sent in the same way the XXE is exploited, building a payload in memory and using the buffer overflow to execute it, resulting in an unauthenticated RCE. |
| Note | Stability: - crash-safe SideEffects: - artifacts-on-disk - ioc-in-logs Reliability: - repeatable-session |
| Ransomware campaign use | Unknown |
| Source publication date | July 26, 2024 |
| Platform | Linux,Unix |
| Source URL | https://github.com/rapid7/metasploit-framework/tree/master/modules/exploits/linux/http/magento_xxe_to_glibc_buf_overflow.rb |
| Data source | KEV |
|---|---|
| Date added | July 17, 2024 |
| Description | Adobe Commerce and Magento Open Source contain an improper restriction of XML external entity reference (XXE) vulnerability that allows for remote code execution. |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
| Due date | Aug. 7, 2024 |
| Note | https://helpx.adobe.com/security/products/magento/apsb24-40.html; https://nvd.nist.gov/vuln/detail/CVE-2024-34102 |
| Ransomware campaign use | Unknown |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2024-07-18T03:55:19Z/
Decision: Act
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2024/34xxx/CVE-2024-34102.json
Source Advisory: vulnrichment/CVE-2024-34102
[{'Exploitation': 'active'},
{'Automatable': 'yes'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]