PHP up to 5.4.43/5.5.27/5.6.11 ext/openssl/openssl.c RAND_pseudo_bytes cryptographic issues
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.5 | $0-$5k | 0.00 |
A vulnerability was found in PHP up to 5.4.43/5.5.27/5.6.11 (Programming Language Software) and classified as very critical. Affected by this issue is the function RAND_pseudo_bytes
of the file ext/openssl/openssl.c. The manipulation with an unknown input leads to a cryptographic issues vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, integrity, and availability. CVE summarizes:
The openssl_random_pseudo_bytes function in ext/openssl/openssl.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 incorrectly relies on the deprecated RAND_pseudo_bytes function, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via unspecified vectors.
The weakness was released 05/22/2016 (Website). The advisory is available at bugs.php.net. This vulnerability is handled as CVE-2015-8867 since 04/23/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. 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 08/21/2022). This vulnerability is assigned to T1600 by the MITRE ATT&CK project.
The vulnerability scanner Nessus provides a plugin with the ID 91247 (SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1310-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168805 (SUSE Enterprise Linux Security update for php53 (SUSE-SU-2016:1310-1)).
Upgrading to version 5.4.44, 5.5.28 or 5.6.12 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (91247). Entries connected to this vulnerability are available at 87430 and 87565.
Product
Type
Name
Version
- 5.4.0
- 5.4.1
- 5.4.2
- 5.4.3
- 5.4.4
- 5.4.5
- 5.4.6
- 5.4.7
- 5.4.8
- 5.4.9
- 5.4.10
- 5.4.11
- 5.4.12
- 5.4.13
- 5.4.14
- 5.4.15
- 5.4.16
- 5.4.17
- 5.4.18
- 5.4.19
- 5.4.20
- 5.4.21
- 5.4.22
- 5.4.23
- 5.4.24
- 5.4.25
- 5.4.26
- 5.4.27
- 5.4.28
- 5.4.29
- 5.4.30
- 5.4.31
- 5.4.32
- 5.4.33
- 5.4.34
- 5.4.35
- 5.4.36
- 5.4.37
- 5.4.38
- 5.4.39
- 5.4.40
- 5.4.41
- 5.4.42
- 5.4.43
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 5.5.5
- 5.5.6
- 5.5.7
- 5.5.8
- 5.5.9
- 5.5.10
- 5.5.11
- 5.5.12
- 5.5.13
- 5.5.14
- 5.5.15
- 5.5.16
- 5.5.17
- 5.5.18
- 5.5.19
- 5.5.20
- 5.5.21
- 5.5.22
- 5.5.23
- 5.5.24
- 5.5.25
- 5.5.26
- 5.5.27
- 5.6.0
- 5.6.1
- 5.6.2
- 5.6.3
- 5.6.4
- 5.6.5
- 5.6.6
- 5.6.7
- 5.6.8
- 5.6.9
- 5.6.10
- 5.6.11
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.7VulDB Meta Temp Score: 8.5
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
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: Cryptographic issuesCWE: CWE-310
ATT&CK: T1600
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: 91247
Nessus Name: SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1310-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 53473
OpenVAS Name: SuSE Update for php5 openSUSE-SU-2016:1274-1 (php5)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: PHP 5.4.44/5.5.28/5.6.12
Patch: 16023f3e3b9c06cf677c3c980e8d574e4c162827
Timeline
04/23/2016 🔍05/17/2016 🔍
05/19/2016 🔍
05/21/2016 🔍
05/22/2016 🔍
05/23/2016 🔍
08/21/2022 🔍
Sources
Product: php.orgAdvisory: USN-2952-1
Status: Not defined
Confirmation: 🔍
CVE: CVE-2015-8867 (🔍)
See also: 🔍
Entry
Created: 05/23/2016 10:30Updated: 08/21/2022 14:05
Changes: 05/23/2016 10:30 (64), 12/09/2018 11:22 (11), 08/21/2022 13:59 (5), 08/21/2022 14:05 (1)
Complete: 🔍
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