Appalti & Contratti: Missing Authentication for Critical Functionality
CVE-2022-44784 is a high-severity missing authentication for critical functionality vulnerability in Appalti & Contratti from Maggioli, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected Appalti & Contratti versions: 9.12.2. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.05% chance of exploitation within 30 days, higher than 65% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Appalti & Contratti you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Maggioli | Appalti & Contratti | 9.12.2 | Not stated |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 3.1 | 8.8 | High | CISA (ADP) |
Official description
An issue was discovered in Appalti & Contratti 9.12.2. The target web applications LFS and DL229 expose a set of services provided by the Axis 1.4 instance, embedded directly into the applications, as hinted by the WEB-INF/web.xml file leaked through Local File Inclusion. Among the exposed services, there is the Axis AdminService, which, through the default configuration, should normally be accessible only by the localhost. Nevertheless, by trying to access the mentioned service, both in LFS and DL229, the service can actually be reached even by remote users, allowing creation of arbitrary services on the server side. When an attacker can reach the AdminService, they can use it to instantiate arbitrary services on the server. The exploit procedure is well known and described in Generic AXIS-SSRF exploitation. Basically, the attack consists of writing a JSP page inside the root directory of the web application, through the org.apache.axis.handlers.LogHandler class.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Missing Authentication for Critical Functionality
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
How developers prevent this class of flaw
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator.
- When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to require strong authentication for users who should be allowed to access the data.
More Missing Authentication for Critical Functionality vulnerabilities (CWE-306)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- members.backbox.org/maggioli-appalti-contratti-multiple-vulnerabilities/Exploit, Third Party Advisory
Other vulnerabilities in Appalti & Contratti
- 7.5 High severity
- 9.8 Critical severity
Recent Missing Authentication for Critical Functionality vulnerabilities
- 7.5 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.1 Critical severity
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