# What is CVE-2022-1434?

> CVE-2022-1434 is a medium-severity flaw (CVSS 5.9) in OpenSSL, published on 3 May 2022. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 1.2%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-1434

## At a glance

- **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle.
- **Precursor Intelligence risk score:** 25 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 5.9 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 1.2% (latest exploit-likelihood forecast)
- **Published:** 3 May 2022
- **Record last updated:** 7 November 2023
- **Main product:** OpenSSL
- **Affected products:** 43

## What is CVE-2022-1434? In plain terms

It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can change data.

### The official description

The OpenSSL 3.0 implementation of the RC4-MD5 ciphersuite incorrectly uses the AAD data as the MAC key. This makes the MAC key trivially predictable. An attacker could exploit this issue by performing a man-in-the-middle attack to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such that the modified data would still pass the MAC integrity check. Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 endpoint will always be rejected by the recipient and the connection will fail at that point. Many application protocols require data to be sent from the client to the server first. Therefore, in such a case, only an OpenSSL 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. If both endpoints are OpenSSL 3.0 then the attacker could modify data being sent in both directions. In this case both clients and servers could be affected, regardless of the application protocol. Note that in the absence of an attacker this bug means that an OpenSSL 3.0 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete the handshake when using this ciphersuite. The confidentiality of data is not impacted by this issue, i.e. an attacker cannot decrypt data that has been encrypted using this ciphersuite - they can only modify it. In order for this attack to work both endpoints must legitimately negotiate the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in OpenSSL 3.0, and is not available within the default provider or the default ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the following must have occurred: 1) OpenSSL must have been compiled with the (non-default) compile time option enable-weak-ssl-ciphers 2) OpenSSL must have had the legacy provider explicitly loaded (either through application code or via configuration) 3) The ciphersuite must have been explicitly added to the ciphersuite list 4) The libssl security level must have been set to 0 (default is 1) 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any others that both endpoints have in common Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).

### What kind of flaw is it?

- CWE-327: Use of a Broken or Risky Cryptographic Algorithm

### How an attack on it works

- Where an attacker can be: Anywhere on the internet
- How hard it is to pull off: Hard: conditions must line up
- Login needed first: No login needed
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can change data

Severity vector: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N`

## Is CVE-2022-1434 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 1.2%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 1.1%, 1.1%, 1.1%, 1.1%, 1.2%, 1.2%, 1.2%.

### Timeline

- 3 May 2022: Published
- 7 November 2023: Record last updated

### How Precursor Intelligence ranks it

CVE-2022-1434 scores **25 out of 100 (Low)**, with the action "Monitor".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2022-1434?

The published record lists 43 products. Versions are as published: "3.0.0 to before 3.0.3" means from 3.0.0 up to, but not including, 3.0.3.

- [OpenSSL](https://www.precursorintelligence.com/product/openssl/openssl) by [OpenSSL](https://www.precursorintelligence.com/vendors/openssl) (Application): 3.0.0 to before 3.0.3
- [A250](https://www.precursorintelligence.com/product/netapp/a250) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [A250 Firmware](https://www.precursorintelligence.com/product/netapp/a250_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [A700s](https://www.precursorintelligence.com/product/netapp/a700s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [A700s Firmware](https://www.precursorintelligence.com/product/netapp/a700s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Active Iq Unified Manager](https://www.precursorintelligence.com/product/netapp/active_iq_unified_manager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Aff 500f](https://www.precursorintelligence.com/product/netapp/aff_500f) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff 500f Firmware](https://www.precursorintelligence.com/product/netapp/aff_500f_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff 8300](https://www.precursorintelligence.com/product/netapp/aff_8300) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff 8300 Firmware](https://www.precursorintelligence.com/product/netapp/aff_8300_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff 8700](https://www.precursorintelligence.com/product/netapp/aff_8700) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff 8700 Firmware](https://www.precursorintelligence.com/product/netapp/aff_8700_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff A400](https://www.precursorintelligence.com/product/netapp/aff_a400) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff A400 Firmware](https://www.precursorintelligence.com/product/netapp/aff_a400_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Clustered Data Ontap](https://www.precursorintelligence.com/product/netapp/clustered_data_ontap) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Clustered Data Ontap Antivirus Connector](https://www.precursorintelligence.com/product/netapp/clustered_data_ontap_antivirus_connector) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Fabric-Attached Storage A400](https://www.precursorintelligence.com/product/netapp/fabric-attached_storage_a400) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fabric-Attached Storage A400 Firmware](https://www.precursorintelligence.com/product/netapp/fabric-attached_storage_a400_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas 500f](https://www.precursorintelligence.com/product/netapp/fas_500f) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas 500f Firmware](https://www.precursorintelligence.com/product/netapp/fas_500f_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas 8300](https://www.precursorintelligence.com/product/netapp/fas_8300) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas 8300 Firmware](https://www.precursorintelligence.com/product/netapp/fas_8300_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas 8700](https://www.precursorintelligence.com/product/netapp/fas_8700) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas 8700 Firmware](https://www.precursorintelligence.com/product/netapp/fas_8700_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H300e](https://www.precursorintelligence.com/product/netapp/h300e) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H300e Firmware](https://www.precursorintelligence.com/product/netapp/h300e_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H300s](https://www.precursorintelligence.com/product/netapp/h300s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H300s Firmware](https://www.precursorintelligence.com/product/netapp/h300s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H410s](https://www.precursorintelligence.com/product/netapp/h410s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H410s Firmware](https://www.precursorintelligence.com/product/netapp/h410s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H500e](https://www.precursorintelligence.com/product/netapp/h500e) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H500e Firmware](https://www.precursorintelligence.com/product/netapp/h500e_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H500s](https://www.precursorintelligence.com/product/netapp/h500s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H500s Firmware](https://www.precursorintelligence.com/product/netapp/h500s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H700e](https://www.precursorintelligence.com/product/netapp/h700e) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H700e Firmware](https://www.precursorintelligence.com/product/netapp/h700e_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H700s](https://www.precursorintelligence.com/product/netapp/h700s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H700s Firmware](https://www.precursorintelligence.com/product/netapp/h700s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Santricity Smi-S Provider](https://www.precursorintelligence.com/product/netapp/santricity_smi-s_provider) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Smi-S Provider](https://www.precursorintelligence.com/product/netapp/smi-s_provider) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Snapmanager](https://www.precursorintelligence.com/product/netapp/snapmanager) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- Solidfire & Hci Management Node by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- Solidfire, Enterprise Sds & Hci Storage Node by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified

## How do I fix CVE-2022-1434?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [openssl.org](https://www.openssl.org/news/secadv/20220503.txt) (Vendor advisory)
- [cert-portal.siemens.com](https://cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf)
- [git.openssl.org](https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=7d56a74a96828985db7354a55227a511615f732b)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20220602-0009/) (Third-party advisory)

## Questions

### What is CVE-2022-1434?

CVE-2022-1434 is a medium-severity flaw in OpenSSL, published on 3 May 2022. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can change data.

### How serious is CVE-2022-1434?

It scores 5.9 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2022-1434 is 25 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2022-1434 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 1.2%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2022-1434 affect?

For OpenSSL: 3.0.0 to before 3.0.3. The record lists 43 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2022-1434?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2022-1434 affect you?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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