HTTP Server vulnerabilitiesAnd the versions its exploited flaws hit.
HTTP Server is made by Oracle. We track 102 published vulnerabilities in it, across 42 versions. 3 of them are on the list of flaws known to be exploited, the newest added on 27 June 2022. If you run HTTP Server, check your version against the exploited flaws below and patch those first.
The most recent HTTP Server flaw added to the known-exploited list is CVE-2021-4034, on 27 June 2022. We keep watching the known-exploited list.
Which versions of HTTP Server do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
Which HTTP Server vulnerabilities are being exploited?
3 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.8Red Hat Polkit Out-of-Bounds Read and Write Vulnerability
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
- 9.0Apache HTTP Server-Side Request Forgery (SSRF)
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.
- 7.8Apache HTTP Server Privilege Escalation Vulnerability
Apache HTTP Server, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute code with the...
Which HTTP Server flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.
- 97%CVE-2021-44790Critical
A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts).
- 95%
A local privilege escalation vulnerability was found on polkit's pkexec utility.
- 90%CVE-2002-0656High
Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.
- 86%CVE-2014-0226Medium
Race condition in the mod_status module in the Apache HTTP Server before 2.4.10 allows remote attackers to cause a denial of service (heap-based buffer overflow), or possibly obtain sensitive credential information...
- 84%CVE-2013-2566Medium
The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in...
- 82%CVE-2021-44224High
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests...
- 74%CVE-2015-2808Medium
The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct...
- 69%CVE-2022-22719High
A carefully crafted request body can cause a read to a random memory area which could cause the process to crash.
- 65%
In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter)...
Running HTTP Server? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
- Matched to
- HTTP Server on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 102 published vulnerabilities listed under the name HTTP Server, across 42 versions. The most recent HTTP Server flaw added to the known-exploited list is CVE-2021-4034, on 27 June 2022.
3 are on the list of flaws known to be exploited. The most recently added are CVE-2021-4034, CVE-2021-40438 and CVE-2019-0211.
Create a Precursor Intelligence account and track HTTP Server. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.